Archives: Articles

This is the example article

AI helps uncover hidden trove of Nazca geoglyphs

Proceedings of the National Academy of Sciences—An AI-assisted analysis nearly doubles the number of known Nazca geoglyphs, revealing the forms, locations, and potential uses of the geoglyphs, according to a study. Nazca geoglyphs are figures on the ground created by moving stones or gravel. Field surveys that began in the 1940s have identified 430 figurative geoglyphs of motifs such as animals and humans. Masato Sakai, Marcus Freitag, and colleagues applied AI image analysis to high-resolution images of the entire Nazca region of Peru to accelerate the rate of geoglyph discovery. The authors identified an additional 303 geoglyphs within six months of field survey. The AI-based system was skillful in identifying relief-type geoglyphs, which are smaller and more difficult to identify than large, line-type geoglyphs. Next, the authors analyzed the geoglyphs’ form, location, and probable use. Among relief-type geoglyphs, 81.6% depicted domestic animals or humans, whereas 64% of line-type geoglyphs depicted wild animals. Relief-type geoglyphs were built within viewing distance—on average 43 meters—from foot trails. Line-type geoglyphs were built an average of 34 meters from a linear network of geoglyphs. According to the authors, relief-type geoglyphs may have been used to convey cultural concepts, including those related to domesticated animals or human sacrifice, to individuals or small groups walking along trails, whereas line-type geoglyphs may have been part of community-level ritual activities.

______________________________

A 22-meter-long relief-type geoglyph depicting a killer whale holding a knife. Masato Sakai

______________________________

A 18-meter-long relief-type geoglyph depicting a human. Masato Sakai

______________________________

Article Source: PNAS news release.

*“AI-accelerated Nazca survey nearly doubles number of known figurative geoglyphs and sheds light on their purpose,” by Masato Sakai et al., Proceedings of the National Academy of Sciences, 23-Sep-2024. https://www.pnas.org/cgi/doi/10.1073/pnas.2407652121

______________________________

Advertisement

EXPLORE THE ANCIENT ETRUSCANS IN PERSON!
Experience a unique, up-close-and-personal hike among ancient hilltop towns in central Italy. You will walk the sensational countryside of the regions of Umbria and Tuscany, soaking in important sites attesting to the advanced Etruscan civilization, forerunners of the ancient Romans; imposing architectural and cultural remains of Medieval Italy; local food and drink; and perhaps best of all — spectacular scenic views! Join us in this collaborative event for the trip of a lifetime!

Review: Deepening the debate about early horseback riding in Bronze age societies

American Association for the Advancement of Science (AAAS)—A new Review contextualizes findings from a 2023 Science Advances study that presented what was possibly the earliest documented evidence of horseback riding by humans. The study described signs of “horsemanship syndrome” – or physical skeletal deformities in the lower body associated with biomechanical stress from prolonged horseback riding – in remains from Yamnaya pastoralists in Western Eurasia dating back to the early Bronze Age 4,500 to 5,000 years ago. Now, Lauren Hosek and colleagues question these results. They argue that horseback riding syndrome should be defined more holistically, looking for asymmetries and traces of inflammation-induced scarring across the whole skeleton instead of defining specific injuries as “smoking guns.” They note that no archaeozoological signs of riding in Yamnaya horse skeletal remains. Moreover, recent genomic analyses show little-to-no connection between Yamnaya horses and ancestors of modern domestic horses. For all investigations into early horse domestication, Hosek et al. underscore the importance of comparative datasets that help differentiate whether skeletal deformities come from horseback riding, chariot use, or other stressors.

___________________________

The posture and position of a human rider. Body areas of interest from Table 1 are highlighted in red for (A) horseback riding without stirrups, (B) horseback riding with saddle and stirrups; (C) horse, donkey, or hemione-driven chariot; and (D) cattle-drawn wagon (figure drawings produced by D. Chechushkova). Hosek et al., Sci. Adv. 10, eado9774 (2024)

___________________________

Article Source: AAAS news release.

The City Under the Museum: A Pictorial

It rises as the most massive, modern edifice near the great Acropolis of Athens. Located only 280 meters from the Parthenon itself, near the southeastern slope of the iconic rock, it strikes an imposing and contrasting contemporary presence among surrounding structures that represent an earlier time in Athen’s history. Opened to the public in 2009, the Acropolis Museum houses more than 4,250 artifacts and other objects, many of which are exhibited across an internal area of 14,000 square meters. Entering and walking throughout this magnificent space, what profoundly strikes most visitors is the statuary, removed from their original Acropolis locations through time as archaeologists, conservationists and others have worked at the famous summit and the associated ancient remains that still grace much of its slope. 

______________________________

The Acropolis Museum as seen from the top of the Acropolis hill. Louis Dalibard, Creative Commons Attribution-Share Alike 4.0 International, Wikimedia Commons

______________________________

The Acropolis as seen from the Acropolis Museum.

______________________________

As exhibited in the Acropolis Museum: Original caryatids from the Acropolis hill.

______________________________

Above and below: Original statuary from the frieze that once graced the front of the Parthenon, as exhibited in the Acropolis Museum.

______________________________

______________________________

But there is a ‘secret’ to this museum that most visitors don’t know or think about until they actually step upon the museum floors. It lies below the surface. Like viewing through a looking glass, you can see it by peering down through filmy, transparent rectangular sections embedded into the floor, interspersed throughout the museum’s ground floor space. Here you see the remains of ancient structures unearthed through a series of excavations in the area at a site designated by archaeologists as the “Makrygiannis plot”, an urban neighborhood that flourished for centuries in the shadow of the Acropolis.

______________________________

The archaeological remains as seen through the floor of the Acropolis Museum.

______________________________

A Slice of Urban Life in Antiquity

From the 4th century BC to the 12th century AD, people carried out their daily lives in this place. They constructed streets, residences, baths, workshops and tombs. Today, visitors can see only a small part of the entire settlement, the segment that has been exposed intact beneath the new Acropolis Museum construction and the Acropolis Metro Station. The rest has been covered with earth during investigations and excavations, preserved and protected for the future.

What the observer sees today are mostly the better-preserved remains dating from Late Antiquity. Prominent among them are the remains of a luxurious residential mansion complex that included colonnaded courtyards, mosaic floors, a private bath system and latrines. Archaeologists and historians suggest that the residence belonged to a wealthy high-ranking official or local patron with ties to Rome’s imperial court. Other elements of the excavated area include public latrines and private baths, such as the West Bath, of other wealthy citizens.

_________________________________

Remains of the ancient community beneath the museum can today be freely viewed with admission to the Acropolis Museum.

_________________________________

Map of the ancient community. As exhibited at the Acropolis Museum.

______________________________

Above and below: The remains of a magnificent residence of a wealthy individual, as shown among the remains of the excavated community.

______________________________

______________________________

______________________________

______________________________

______________________________

Above and below (drawing), the remains of a private bath house as part of a wealthy residence. Both photos are details of exhibits displayed at the Acropolis Museum.

______________________________

______________________________

Below: Remains of one of the oldest elite houses of the excavation. This residence was founded in the late 5th century B.C., and was in use until the 6th century A.D. Seen here (below) are mostly the remains of the 5th and 3rd centuries B.C., as well as some remains representing the 6th century A.D.
Notable are remains from the 3rd century B.C., showing a house courtyard where later a workshop was constructed. It features three cisterns, with a terracotta cylindrical pipeline providing fresh water and another pipeline diverting water to the street’s sewer. It is hypothesized that the workshop was a fullonica, where dirty clothes were washed and processed/whitened before being colored. The above illustration detail of artist’s rendition of the house is shown as exhibited at the Acropolis Museum.

______________________________

______________________________

______________________________

______________________________

______________________________

______________________________

______________________________

______________________________

______________________________

______________________________

Not the least in terms of significance, the excavations have yielded numerous artifacts, including sculptures, various types of vessels, and coins, among other finds. These artifacts have helped to shed great light on our knowledge of the life-ways of the inhabitants over centuries of occupation. 

 

_______________________________

For interested readers, this site and many more are best visited in person. See the website to get your journey started.

______________________________

Advertisement

EXPLORE THE ANCIENT ETRUSCANS IN PERSON!
Experience a unique, up-close-and-personal hike among ancient hilltop towns in central Italy. You will walk the sensational countryside of the regions of Umbria and Tuscany, soaking in important sites attesting to the advanced Etruscan civilization, forerunners of the ancient Romans; imposing architectural and cultural remains of Medieval Italy; local food and drink; and perhaps best of all — spectacular scenic views! Join us in this collaborative event for the trip of a lifetime!

______________________________

Research reveals reality of Ice Age teen puberty

University of Victoria—Landmark new research shows Ice Age teens from 25,000 years ago went through similar puberty stages as modern-day adolescents. In a study* published today in the Journal of Human Evolution of the timing of puberty in Pleistocene teens, researchers are addressing a knowledge gap about how early humans grew up.

Found in the bones of 13 ancient humans between 10 and 20 years old is evidence of puberty stages. Co-led by University of Victoria (UVic) paleoanthropologist April Nowell, researchers found specific markers in the bones that allowed them to assess the progress of adolescence.

“By analyzing specific areas of the skeleton, we inferred things like menstruation and someone’s voice breaking,” says Nowell.

The technique was developed by lead author Mary Lewis from the University of Reading. Lewis’s technique evaluates the mineralization of the canines and maturation of the bones of the hand, elbow, wrist, neck and pelvis to identify the stage of puberty reached by the individual at their time of death.

“This is the first time my puberty stage estimation method has been applied to Paleolithic fossils and it is also the oldest application of another method—peptide analysis—for biological sex estimation,” says Lewis.

Life during prehistory was believed to be as Thomas Hobbes described: “nasty, brutish and short.” However, this new study shows these teens were actually quite healthy. Most individuals in the study sample entered puberty by 13.5, reaching full adulthood between 17 and 22 years old. This indicates these Ice Age adolescents started puberty at a similar time to teens in modern, wealthy countries.

“It can sometimes be difficult for us to connect with the remote past, but we all went through puberty even if we experienced it differently,” says Nowell. “Our research helps to humanize these teens in a way that simply studying stone tools cannot.”

One of the 13 skeletons examined was “Romito 2,” an adolescent estimated to be male and the earliest known individual with a form of dwarfism. This new research on puberty assessment provides further information about Romito 2’s likely physical appearance and his social role.

Since he was mid-way through puberty, his voice would be deeper much like an adult male and he would have been able to father children; however, he may still have appeared quite youthful with fine facial hair. Due to his short height, his appearance would have been closer to that of a child, which may have had implications for how he was perceived by his community.

“The specific information about the physical appearance and developmental stage of these Ice Age adolescents derived from our puberty study provides a new lens through which to interpret their burials and treatment in death,” says archaeologist Jennifer French of the University of Liverpool, one of the co-authors of the study.

Researchers from six institutions collaborated internationally to develop this body of knowledge: UVic (Canada), University of Reading and University of Liverpool (UK), Museum of Prehistoric Anthropology of Monaco (Monaco), University of Cagliari (Italy) and University of Siena (Italy). The collaboration continues with research into the lives of Ice Age teenagers and their social roles.

This research was supported by the Social Sciences and Humanities Research Council, in addition to Nowell’s Lansdowne Fellowship Award.

___________________________

Dr. Mary Lewis from the University of Reading (UK) inspects the skeletal remains of Romito 2 found in southern Italy. University of Reading

___________________________

Reconstruction of Romito 2, a 16-year-old teenager with a form of dwarfism who lived 11,000 years ago in southern Italy. Illustration: Olivier Graveleau

___________________________

Article Source: University of Victoria news release.

An ancient Neanderthal lineage remained isolated from other populations for over 50,000 years—up until the species extinction

Cell Press—A fossilized Neanderthal discovered in a cave system in the Rhône Valley, France, represents an ancient and previously undescribed lineage that diverged from other currently known Neanderthals around 100,000 years ago and remained genetically isolated for more than 50,000 years. Genomic analysis indicates that the Neanderthal, nicknamed “Thorin” in reference to the Tolkien character, lived between 42,000–50,000 years ago in a small, isolated community. The discovery, publishing September 11 in the Cell Press journal Cell Genomics, could shed light on the still-enigmatic reasons for the species’ extinction and suggests that late Neanderthals had more population structure than previously thought.

“Until now, the story has been that at the time of the extinction there was just one Neanderthal population that was genetically homogeneous, but now we know that there were at least two populations present at that time,” says first author and population geneticist Tharsika Vimala (@tharsikavimala) of the University of Copenhagen.

“The Thorin population spent 50,000 years without exchanging genes with other Neanderthal populations,” says co-first author and discoverer of Thorin, Ludovic Slimak, CNRS researcher of Université Toulouse Paul Sabatier. “We thus have 50 millennia during which two Neanderthal populations, living about ten days’ walk from each other, coexisted while completely ignoring each other. This would be unimaginable for a Sapiens and reveals that Neanderthals must have biologically conceived our world very differently from us Sapiens.”

Thorin’s fossilized remains were first discovered in 2015 in Grotte Mandrin—a well-studied cave system that also housed early Homo sapiens, though not at the same time—and he is still being slowly excavated.

Based on Thorin’s location within the cave’s sediment, the team’s archeologists suspected that he lived around 40–45,000 years ago, making him a “late Neanderthal.” To determine his age and relationships with other Neanderthals, the team extracted DNA from his teeth and jaw and compared his full genome sequence to previously sequenced Neanderthal genomes.

 Surprisingly, the initial genomic analysis suggested that Thorin was much older than the archeological age estimate because his genome was very distinct from other late Neanderthals and much more closely resembled the genomes of Neanderthals who lived more than 100,000 years ago.

“We worked for seven years to find out who was wrong—archeologists or genomicists,” says Slimak.

To solve this riddle, the researchers analyzed isotopes from Thorin’s bones and teeth to gain insight into what type of climate he lived in—late Neanderthals lived during the Ice Age, while early Neanderthals enjoyed a much warmer climate. The isotopic analysis showed that Thorin lived in a very cold climate, making him a late Neanderthal.

“This genome is a remnant of some of the earliest Neanderthal populations in Europe,” says population geneticist and senior author Martin Sikora of the University of Copenhagen. “The lineage leading to Thorin would have separated from the lineage leading to the other late Neanderthals around 105,000 years ago.”

Compared to previously sequenced Neanderthal genomes, Thorin’s genome most closely resembled an individual excavated in Gibraltar, and Slimak speculates that Thorin’s population migrated to France from Gibraltar.

“This means there was an unknown mediterranean population of Neanderthals whose population spanned from the most western tip of Europe all the way to the Rhône Valley in France,” says Slimak.

Knowing that Neanderthal communities were small and insular could be key to understanding their extinction because isolation is generally considered to be a disadvantage for population fitness.

“It’s always a good thing for a population to be in contact with other populations,” says Vimala. “When you are isolated for a long time, you limit the genetic variation that you have, which means you have less ability to adapt to changing climates and pathogens, and it also limits you socially because you’re not sharing knowledge or evolving as a population.”

However, to really understand how Neanderthal populations were structured and why they went extinct, the researchers say that more Neanderthal genomes need to be sequenced.

“I would guess that if we had more genomes from other regions during this similar time period, we would probably find other deeply structured populations,” says Sikora.

_______________________________

Fossilized Neanderthal Thorin. Ludovik Slimak

___________________________

This research was supported by the Service Regional de l’Archeologie Auvergne Rhone-Alpes, the French CNRS, the city of Malataverne, the Lundbeck Foundation and the Danish National Research Foundation, the European Research Council, and the Australian Research Council.

Cell Genomics, Slimak, Vimala, and Seguin-Orlando et al., “Long genetic and social isolation in Neanderthals before their extinction” https://cell.com/cell-genomics/fulltext/S2666-979X(24)00177-0

Cell Genomics (@CellGenomics) is a new gold open access journal from Cell Press publishing multidisciplinary research at the forefront of genetics and genomics. The journal aims to bring together diverse communities to advance genomics and its impact on biomedical science, precision medicine, and global and ecological health. Visit https://www.cell.com/cell-genomics/home. To receive Cell Press media alerts, please contact press@cell.com.

Article Source: Cell Press news release

Ancient DNA from Rapa Nui (Easter Island) refutes best-selling population collapse theory

University of Copenhagen – The Faculty of Health and Medical Sciences—Rapa Nui or Te Pito o Te Henua (the navel of the world), also known as Easter Island, is one of the most isolated inhabited places in the world. Located in the Pacific, it lies over 1,900 km east of the closest inhabited Polynesian island and 3,700 km west of South America. Although the island, its inhabitants and their rich culture have been extensively studied by archaeologists, anthropologists and geneticists, two key elements of Rapanui history remain very controversial to this day. One of these is the theory of population collapse through “ecocide” or “ecological suicide” in the 1600s, thought to be the result of overpopulation and resource mismanagement. The other major contention is whether the Polynesian ancestors of the Rapanui interacted with Indigenous Americans before contact with Europeans in 1722.

This week’s issue of Nature features a genetic study that sheds light on these two debates related to Rapanui history by examining the genomes of 15 Rapanui individuals who lived between 1670 and 1950. The remains of these 15 individuals are currently hosted at the Musée de l’Homme, in Paris. The new study was carried out by an international team of scientists and was spearheaded by Assistant Professor Víctor Moreno-Mayar from the Globe Institute at the University of Copenhagen (Denmark), and PhD student Bárbara Sousa da Mota and Associate Prof. Anna-Sapfo Malaspinas from the Faculty of Biology and Medicine at the University of Lausanne (Switzerland), in close collaboration with colleagues in Rapa Nui as well as in Austria, France, Chile, Australia and U.S.A.

The collapse that never happened

The story of the Rapanui has often been presented as a warning tale against humanity’s over-exploitation of resources. After Polynesians from the west peopled the island by 1250, the landscape on Rapa Nui changed drastically. Towering stone statues—the moai—were carved and placed in all corners of the island, while its original forest of millions of palm trees dwindled and, by the 1600s, was all but gone. According to the “ecocide” theory, a population of over 15,000 Rapanui individuals triggered these changes that led to a period of resource scarcity, famine, warfare and even cannibalism culminating in a catastrophic population collapse.

“While it is well established that the environment of Rapa Nui was affected by anthropogenic activity, such as deforestation, we did not know if or how these changes led to a population collapse,” comments Anna-Sapfo Malaspinas, Assoc. Professor at the University of Lausanne and group leader at the SIB Swiss Institute of Bioinformatics, Switzerland, last author of the study.

The researchers looked into the genomes of the Ancient Rapanui individuals expecting to find a genetic signature of a population collapse such as a sudden drop in genetic diversity. But surprisingly, the data did not contain any evidence of a population collapse in the 1600s. 

“Our genetic analysis shows a stably growing population from the 13th century through to European contact in the 18th century. This stability is critical because it directly contradicts the idea of a dramatic pre-contact population collapse,” says Bárbara Sousa da Mota, a researcher at the Faculty of Biology and Medicine at University of Lausanne and first author of the study.

Through their genetic analysis, Moreno-Mayar, Sousa da Mota, Malaspinas and their colleagues have not only provided evidence against the collapse theory, but also stress the resilience of the Rapanui population facing environmental challenges over several centuries until the colonial disruptions that European contact brought after 1722.

Did Polynesians reach the Americas?

Another debate that has tantalized researchers for decades is whether Polynesians ever reached the Americas. Although long-distance maritime navigation using wooden watercraft likely halted after the Rapa Nui forest disappeared, archaeological and genetic evidence from contemporary individuals hints that voyages to the Americas did occur. However, previous studies looking at small amounts of DNA from ancient Polynesians had rejected the hypothesis that transpacific voyages took place. Thus, these findings have put into question whether Polynesians reached the Americas and have suggested that the inferred contact based on present-day genetic data was mediated by European colonial activity after 1722.

By generating high-quality ancient genomes from the 15 Rapanui individuals, the team substantially increased the amount of genomic data from the island and found that about ten percent of the Rapanui gene pool has an Indigenous American origin. But more importantly, they were able to infer both populations met before Europeans arrived in the island and in the Americas.

“We looked into how the Indigenous American DNA was distributed across the Polynesian genetic background of the Rapanui. This distribution is consistent with a contact occurring between the 13th and the 15th centuries, ” says first author Víctor Moreno-Mayar, Asst. Professor at the Globe Institute’s Section for Geogenetics, University of Copenhagen.

“While our study cannot tell us where this contact occurred, this might mean that the Rapanui ancestors reached the Americas before Christopher Columbus,” says Malaspinas.

Altogether, the results from the new study help settle longstanding debates that have led to years of speculation surrounding Rapanui history.

“Personally, I believe the idea of the ecocide is put together as part of a colonial narrative. That is this idea that these supposedly primitive people could not manage their culture or resources, and that almost destroyed them. But the genetic evidence shows the opposite. Although we have to acknowledge that the arrival of humans dramatically changed the ecosystem, there is no evidence of a population collapse before the Europeans arrived on the island. So we can put those ideas to rest now,” says Moreno-Mayar.

“Many thought that present-day Rapanui carry Indigenous American genetic ancestry due to European colonial activity. But instead, the data strongly suggests that Rapanui and Indigenous Americans met and admixed centuries before Europeans made it to Rapa Nui or the Americas. We believe this means that Rapanui were capable of even more formidable voyages across the Pacific than previously established, ” adds Sousa da Mota.

Future repatriation efforts

Importantly, the scientists held face-to-face discussions with members of the Rapanui community and the “Comisión Asesora de Monumentos Nacionales” in Rapa Nui (CAMN). These discussions allowed to steer the research and to define a set of research questions that were equally of high interest to the scientists and the community. For instance, the team was able to show that the populations closest to the ancient Rapanui are indeed those currently living on the island.

“We have seen that museum archives contain mistakes and mislabels. Now that we have established that these 15 individuals were in fact Rapanui we know that they belong back in the island,” says Moana Gorman Edmunds, an archaeologist in Rapa Nui and co-author of the study.

Furthermore, when ongoing results were presented to representatives of the Rapanui community, the need to repatriate their ancestors was discussed as a central goal for immediate future efforts.

“We now have a strong fact-based argument to start an important discussion about how and when these remains should be returned to the island. Furthermore, through the CAMN, the Rapanui community will stay in control of who gets the genetic data of our ancestors and what they use it for,” adds Gorman Edmunds.

The Surprising Ways Inventions and Ideas Spread in Ancient Prehistory

Brenna R. Hassett, PhD, is a biological anthropologist and archaeologist at the University of Central Lancashire and a scientific associate at the Natural History Museum, London. In addition to researching the effects of changing human lifestyles on the human skeleton and teeth in the past, she writes for a more general audience about evolution and archaeology, including the Times (UK) top 10 science book of 2016 Built on Bones: 15,000 Years of Urban Life and Death, and her most recent book, Growing Up Human: The Evolution of Childhood. She is also a co-founder of TrowelBlazers, an activist archive celebrating the achievements of women in the “digging” sciences.

The human capacity for invention is unparalleled. We have developed technologies that have allowed us to survive and thrive far beyond the ecological niches that constrained our ancestors. While our innovation has allowed us to break loose from the constraints of our home continent, Africa, and even our home planet, the actual way in which our species adopts new technologies remains a subject of huge debate among those scientists who study the past. Does one hominid ancestor start to shuffle upright, and the rest follow? Does the first human to loop a piece of string through a shell bead inspire the rest of the species to create the world’s first jewelry? Or do different animals take up the same new adaptation at different times, because it solves a problem that appears in many places?

We know that in some of our closest living relatives, the primates, new technical skills are passed on through direct learning. Macaques, in particular, are responsible for innovative behaviors that have been transmitted through their societies by individuals who have seen and observed them and then adopted them as their own. This is true of behaviors as varied as “hot tubbing” by the macaques of Japan’s northern Hokkaido island and the habit of dipping sweet potatoes in the sea to “salt” them developed by macaques on Koshima island further south.

Many of the technological innovations that have had the greatest impact on our species were first seen about 10,000 to 15,000 years ago in a region that archaeologists refer to as the “Fertile Crescent.” The region encompasses a swathe of land crossing the countries between the easternmost Mediterranean Sea and the Sinai, Arab, and Syrian deserts and up into the Zagros Mountains of what is now Iran. It is a region of famous firsts in terms of radical changes to our species lifestyle: settling down, cultivating plants, and taming the animals we eat are all first attested in this strip of relatively abundant land.

It was along the shores of the Sea of Galilee where we have the first evidence of the wild ancestors of today’s wheat being exploited more than 20,000 years ago, at the site of Ohalo II, reconstructed from the microscopic remains of shattered seeds still clinging to a grinding stone after millennia. From 15,000 years ago, in a corridor stretching up and down the eastern Mediterranean we call the Levant, there comes the first signs of a new way of life for humans; one that involves staying in the same groups and homes all year round, rather than following food around the landscape as we had done for the 300,000 years prior. Those seeds from Ohalo II have grown into entirely new shapes by the time they are uncovered in these new inventions, called villages, and by around 9,000 years ago this new human-friendly type of wheat was well on its way to becoming our first domesticate (domesticate that wasn’t a dog—those we have had for probably 30,000 years). Meanwhile, over the last 10,000 years or so, goats, sheep, pigs, and eventually cattle were all brought into these new human habitations, and bred into the shapes that suit us rather than them: better to eat or easier to manage.

What is even more remarkable about these radical changes in a species that had been living as foragers for hundreds of thousands of years was how fast these new innovations “spread.” Archaeologists in the 20th century dedicated huge amounts of time to tracking the movements of new technologies through the evidence of ancient houses, pots, and bones to work out how people from the Near East had “invaded” Europe with their culture of domestication, and even when the idea of a mass invasion was put to rest, some still claimed that people themselves carried the new ideas of domesticated life. The way we saw human inventions was as hot-tubbing macaques at a larger scale: one clever inventor and her friends and family following behind.

This has large implications for human knowledge. Did it take people literally passing on new skills to spread farming, domestic animals, and year-round lifestyles to all corners of the globe? Is this the only way our species learns something this life-changing?

We are not, as it turns out, macaques. Good scientific evidence has given us dates for a farming and animal revolution in China that happened just a thousand or so years later, but for a totally different crop: rice. The invention of cultivated plants occurred independently, as did other similar innovations like domesticating animals. In fact, around the world, there was an endless series of radical revolutions, some earlier, some later, but all bringing plant and animal life under human management: from the potato and the alpaca in South America to pearl millet and cattle in West Africa.

This phenomenon is called “independent invention,” and it is our strongest evidence yet that every innovation our species has made has been a response to a place and time; that some technologies travel far and wide but, where they don’t, we are perfectly capable of inventing them again.

_____________________________

This article was produced by Human Bridges.

Cover Image, Top Left: Wheat, Bru-nO, Pixabay

_____________________________

Advertisement

EXPLORE THE ANCIENT ETRUSCANS IN PERSON!
Experience a unique, up-close-and-personal hike among ancient hilltop towns in central Italy. You will walk the sensational countryside of the regions of Umbria and Tuscany, soaking in important sites attesting to the advanced Etruscan civilization, forerunners of the ancient Romans; imposing architectural and cultural remains of Medieval Italy; local food and drink; and perhaps best of all — spectacular scenic views! Join us in this collaborative event for the trip of a lifetime!

Keys to Building Human Bridges to the Past

Deborah Barsky is a writing fellow for the Human Bridges, a researcher at the Catalan Institute of Human Paleoecology and Social Evolution, and an associate professor at the Rovira i Virgili University in Tarragona, Spain, with the Open University of Catalonia (UOC). She is the author of Human Prehistory: Exploring the Past to Understand the Future (Cambridge University Press, 2022).

Scientific breakthroughs about human origins have captured the curiosity of audiences eager to learn more about the past. We are entering a new phase, thanks to the accumulation of evidence and new research technologies, in which experts and audiences are increasingly asking bigger questions about who we are and where we came from—and are teasing out some valuable answers.

This development has come at a time when there is a growing sense that linking the past with the present can support the attempt to build a more sustainable future.

Groundbreaking technologies are being applied to archeology. Modern archeologists are taking advantage of digital tools to share knowledge about human origins on a widening spectrum of platforms, including museum exhibitsvirtual settings, and on-site experiences.

There is, however, a choke point in this process. The academic findings are described in a highly technical language that requires familiarity with the jargon of many research disciplines and testing methods, making the wider public adoption of research from human evolutionary science and archeology difficult. And most experts from these fields are not sufficiently trained to translate their findings to the array of audiences that can use them. But a growing number of initiatives are providing new ways to bridge the gap separating academia from global public awareness, emerging often from leading research institutions in AustraliaEast AfricaWestern Europe, and the U.S. These centers and the educational efforts emerging from them nurture the evolutionary consciousness people need to appreciate what it means to be human.

Fostering knowledge about chains of events that affected the human evolutionary pathway thousands and even millions of years ago allows us to fit them into a coherent, multilevel chronological, and cultural framework. We can train our minds to reflect over long periods and find useful ways to compare chapters of human history. This fundamental viewpoint will permit the kind of planning necessary for solving long-term human challenges, from social to environmental.

A fuller spatial and temporal sense of human history produces logic that chimes with the best of our humanitarian impulses—by applying what we have learned, human history can be understood as a single global dataset—providing an authentic framework of connection to a universal evolutionary lineage.

We know that territorialism in other mammals and primates is a standard behavior, but there is a unique human overlay underwriting the inequalities of today.

I have pointed out that inventing and nurturing symbolic differences is an adaptive strategy that emerged hundreds of thousands of years ago, during the Acheulian cultural period, and that evolved intoas a cultural mechanism to create and maintain unequal access to rights and resources.

Conventional descriptions associated with archeology often evoke portrayals of adventurous treasure hunters seeking fame and fortune in faraway countries. In the collective mindset, “archeology” conjures idealized visions of the great civilizations of classical antiquity and the first urbanized societies that flourished only a few thousand years ago. However great they were, the rise and fall of these cultural entities marks the commencement of a perpetual war-faring sequence that continues to be the hallmark of modern civilization.

But the human story extends much further back in time and no matter how prodigious they were, these societies were consolidated by modern humans who had already fully integrated the keystones of contemporary civilization.

Thanks to a new impulse launched by the digital revolution that our civilization is undergoing, prehistory invites us to gaze further back in time: deep into the Paleolithic—to discover and understand the foundations upon which organized urban societies were constructed. Compared with classical archeology, ancient Paleolithic records rely on a relatively sparse repertory, consisting mainly of fossilized bones and stone tools shaped by humans who were physically and cognitively very different from us.

While at first glance such objects may appear unremarkable, understanding their significance is essential to complete the picture of the human evolutionary trajectory. In fact, by limiting our inquiry to the sub-modern civilizations that emerged only over the last 5,000 years or so, we are ignoring 98 percent of human evolution that began in Africa at least 2.8 million years ago, when our genus joined other hominins already thriving in Africa to systematically create the first complex technologies made from stone.

The emergence and evolution of these early techno-systems would alter the course of human evolution so significantly that we are still speculating where they will lead us in the future.

In that sense, these early stages of the hominization process that led our genus to adapt culturally, rather than biologically, by creating extrasomatic solutions to evolutionary challenges, are arguably the most important influences that shaped human origins. These solutions were initially made by transforming available materials into tools using specific sets of acquired skills that were systematized into culture.

Through this cumulative process, our ancestors increased the assortment of objects that were to become essential to their survival. OverThrough time, the know-how required to obtain the skills to manufacture these tools also increased exponentially, eventually requiring composite modes of communication to transmit the knowledge from generation to generation.

By incorporating an ever-increasing array of disciplines, both classical and new, archeologists continue to learn more about the different phases of the fascinating journey that led our species to unprecedented techno-dependence. The unfolding of humanity can only be ascertained by unearthing and interpreting the fragmentary remnants left behind in the archeological record by the thousands of generations preceding the 8 billion souls presently living on Earth.

Today, the keys to understanding human origins are becoming more accessible thanks to technologies used to share the exciting discoveries that form the totality of human prehistory and offer scientifically viable reconstructions to inspire even the most reticent of audiences.

Applying advanced scientific methodologies enables specialists to progressively build theories and attitudes that develop into sensibilities based on current states of knowledge. As a first step, it is important to understand that science is in a constant state of flux and premises must be constantly adjusted to keep pace with the latest discoveries. Meanwhile, the development of modern technologies continues to open doors to new ways to source information.

Modern technologies are not only creating new strategies to study the past but they are also transforming the methodologies traditionally used in prehistoric archeology. Some of the techniques are co-opted from other fields of science, like medicine, chemistry, ecology, and biotechnology, thus building up a mesh of collaboration among researchers working in vastly different fields of knowledge. This strategy further contributes to the exponential intellectual revolution underway in research on human origins.

Traditional disciplines, like paleontology and paleoanthropology, for example, are being reshaped by advances in genetic research that are filling in the gaps in the archeological record by shedding new light on interrelationships between different species through time at a lightning pace. Digital 3D reproductions of all kinds of archeological finds and even of the sites themselves provide astoundingly accurate imagery that can be analyzed and shared instantaneously. Non-invasive geoarchaeological methods are being used to locate and study all kinds of settings and the artifacts they yield, and drones equipped with digital cameras allow surveys of hard-to-access areas to locate new archeological sites. High-powered microscopes linked to image processing software serve to determine how stone tools were used for archeobotany, sedimentary analysis, and more. Meanwhile, radiometric and other dating methods are improving our capacity to obtain increasingly precise age evaluations for the archeological sites under study.

Progress is being achieved in sharing data from prehistory at a quickening pace in many high-income countries in Eurasia and North America, where broad-minded insights and international collaborations are stimulating public interest to take advantage of communication technologies to discover and explore universal patrimony relating to all periods of the Paleolithic.

In academia, scientific journals now often require scientists to share their data in online repositories with access to digital platforms that can be built upon by contemporaries and new generations who are encouraged to apply alternative technologies to glean new kinds of information from the same datasets. Online platforms sharing archeological information are easily available to those who wish to consult them. However, much remains to be done for many lower-income countries that still do not have access to the same technologies for exploiting their Paleolithic records on an equal footing, because they lack basic infrastructure and educational facilities, or they are struggling due to poverty, political turmoil, or even lengthy periods of warfare.

Today, the digital revolution has transformed how archeological data from all stages of human evolution can be transmitted to the public. Prehistorians have entered the arena of public awareness on all levels of social interplay, demonstrating the importance of applying long-term insights to tackle such pressing issues as ecological collapsehuman migrationwar, and gender inequality. By creating evolutionary awareness, Paleolithic archeology is helping society recognize the value of studying the distant past to overcome the myopia of our own historical moment.

______________________________

This article was produced by Human Bridges.

Cover Image, Top Left: IAEA Imagebank. https://creativecommons.org/licenses/by/4.0/. Wikimedia Commons

______________________________

Advertisement

EXPLORE THE ANCIENT ETRUSCANS IN PERSON!
Experience a unique, up-close-and-personal hike among ancient hilltop towns in central Italy. You will walk the sensational countryside of the regions of Umbria and Tuscany, soaking in important sites attesting to the advanced Etruscan civilization, forerunners of the ancient Romans; imposing architectural and cultural remains of Medieval Italy; local food and drink; and perhaps best of all — spectacular scenic views! Join us in this collaborative event for the trip of a lifetime!

The Roman siege of Masada lasted just a few weeks, not several years

Tel-Aviv University—Researchers from the Sonia & Marco Nadler Institute of Archaeology at Tel Aviv University used a range of modern technologies, including drones, remote sensing, and 3D digital modeling, to generate the first objective, quantified analysis of the Roman siege system at Masada. Findings indicate that contrary to the widespread myth, the Roman army’s siege of Masada in 73 CE lasted no more than a few weeks.

The study* was conducted by the Neustadter expedition from TAU’s Sonia & Marco Nadler Institute of Archaeology, headed by Dr. Guy Stiebel, together with Dr. Hai Ashkenazi (today Head of Geoinformatics at the Israel Antiquities Authority), and PhD candidates Boaz Gross (from Tel Aviv University and the Israeli Institute of Archaeology) and Omer Ze’evi-Berger (today at the University of Bonn). The study is part of the expedition’s extensive mission, implementing advanced tools and posing fresh questions, to attempt a new understanding of what really happened at Masada. The paper was published in the Journal of Roman Archaeology.

Dr. Stiebel: “In 2017 my expedition renewed, on behalf of TAU’s Sonia & Marco Nadler Institute of Archaeology, excavations at Masada – a world-famous site explored extensively since the early 19th century and throughout the 20th century. Our expedition sets forward several new questions and implements many novel research tools that were not available to previous generations of archaeologists. In this way we intend to obtain fresh insights into what actually happened there before, during, and after the Great Jewish Revolt. As part of this extensive project we devote much scholarly attention to the site’s surroundings. We use drones, remote sensing, and aerial photography to collect accurate high-resolution data from Masada and its environs, with special emphasis on three aspects: the water systems, the trails leading to and from the palatial fortress, and the Roman siege system. The collected information is used to build 3D digital models that provide us with a clear and precise image of the relevant terrains. In the current study we focused on the siege system, which, thanks to the remote location and desert climate, is the best-preserved Roman siege system in the world.”

Dr. Stiebel adds: “For many years, the prevailing theory that became a modern myth asserted that the Roman siege of Masada was a grueling three-year affair. In recent decades researchers have begun to challenge this notion, for various reasons. In this first-of-its kind study we examined the issue with modern technologies enabling precise objective measurements.”

The researchers used drones carrying remote sensors that provided precise, high-resolution measurements of the height, width, and length of all features of the siege system. This data was used to build an accurate 3D digital model, enabling exact calculation of the structures’ volume and how long it took to build them.

Dr. Ashkenazi: “Reliable estimates are available of the quantity of earth and stones a Roman soldier was able to move in one day. We also know that approximately 6,000-8,000 soldiers participated in the siege of Masada. Thus, we were able to objectively calculate how long it took them to build the entire siege system – eight camps and a stone wall surrounding most of the site. We found that construction took merely about two weeks. Based on the ancient historical testimony it is clear that once the assault ramp was completed, the Romans launched a brutal attack, ultimately capturing the fortress within a few weeks at the most. This leads us to the conclusion that the entire siege of Masada lasted no more than several weeks.” 

Dr. Stiebel: “The narrative of Masada, the Great Jewish Revolt, the siege, and the tragic end as related by Flavius Josephus, have all become part of Israeli DNA and the Zionist ethos, and are well known around the world. The duration of the siege is a major element in this narrative, suggesting that the glorious Roman army found it very difficult to take the fortress and crush its defenders. For many years it was assumed that the siege took three long years, but in recent decades researchers have begun to challenge this unfounded belief. In our first-of-its-kind study we used objective measurements and advanced technologies to clarify this issue with the first data-driven scientific answer. Based on our findings we argue that the Roman siege of Masada took a few weeks at the most. As empires throughout history have done, the Romans came, saw, and conquered, quickly and brutally quelling the uprising in this remote location. Our conclusion, however, detracts nothing from the importance of this historical event, and many baffling questions remain to be investigated. For example: Why did the Romans put so much effort into seizing this remote and seemingly unimportant fortress?  To answer this and many other intriguing questions we have initiated a vast, innovative project in and around Masada – collecting data and analyzing it thoroughly in the labs of TAU’s Sonia & Marco Nadler Institute of Archaeology, in collaboration with other researchers, to ultimately shed new light on the old enigma: What really happened at Masada?”

____________________________

3D model of Tower 7 and the circular feature to its left (view to the west). The Neustadter Masada Expedition (Taken from the Journal of Roman Archaeology

____________________________

3D model of the ramp/staircase (view to the southwest). The Neustadter Masada Expedition (Taken from the Journal of Roman Archaeology)

____________________________

Tower 10 and the wall abutting it. The Neustadter Masada Expedition (Taken from the Journal of Roman Archaeology

____________________________

Masada National Park. Omer Ze’evi-Berger.

____________________________

Article Source: Tel-Aviv University news release.

Link to the research Video
Caption: A view from a drone of the excavation site at the center of the mountain platform of Masada.

Credit: The Neustadter Masada Expedition

Link to the article:

https://www.cambridge.org/core/journals/journal-of-roman-archaeology/article/roman-siege-system-of-masada-a-3d-computerized-analysis-of-a-conflict-landscape/32C59BE59ACD3E9A91C95F947DFD271E

______________________________

Advertisement

EXPLORE THE ANCIENT ETRUSCANS IN PERSON!
Experience a unique, up-close-and-personal hike among ancient hilltop towns in central Italy. You will walk the sensational countryside of the regions of Umbria and Tuscany, soaking in important sites attesting to the advanced Etruscan civilization, forerunners of the ancient Romans; imposing architectural and cultural remains of Medieval Italy; local food and drink; and perhaps best of all — spectacular scenic views! Join us in this collaborative event for the trip of a lifetime!

New population model identifies phases of human dispersal across Europe

University of Cologne—An interdisciplinary research team from the University of Cologne’s Institute of Geophysics and Meteorology and the Department of Prehistoric Archaeology has developed a new model*, the “Our Way Model”. They modelled the movements and population densities over time and space during the Aurignacian (approximately 43,000 to 32,000 years ago) to better understand how the first anatomically modern humans populated Europe. The model reveals four phases of the process. The first phase saw a slow expansion of human settlement from the Levant to the Balkans, followed by the second phase of rapid expansion into western Europe. The subsequent third phase was characterized by a decline in human population, and the fourth phase brought regional increases in population density and further advances into previously unsettled areas of Great Britain and the Iberian Peninsula. The results have been published under the title ‘Reconstruction of human dispersal during Aurignacian on pan-European scale’ in Nature Communications.

The interdisciplinary collaboration between climate scientists and archaeologists enabled the team to examine how climate change influenced human dispersal quantitatively. Early anatomically modern humans survived as hunter-gatherers for extremely long periods. When they started spreading across Europe, global climatic conditions were different from today: The prevailing cooler and drier climate of the late Last Glacial Period was repeatedly interrupted by warmer interglacial periods, with some changes occurring abruptly and others gradually.

Reasons for human dispersal to Europe were likely diverse, including human exploratory spirit, evolution in social structure and progress in technology. The newly developed model, however, allowed the research team to clearly demonstrate how climate change impacted human dispersal. Previous numeric models of long-term dispersals of human populations on continental scales commonly relied on so called diffusion-reaction equations, i.e., a combination of slow, continuous dispersal in all directions driven by the constant reproducing and growing population. Agent-based models focusing on individual or group motivations of humans to migrate, in turn, are more popular on smaller scales. Recent new models feature data from paleoclimate models in their calculations, but focus on Net Primary Production, an indicator for the amount of stored CO2 in plants and animals, as a proxy for food availability and human mobility. The disadvantage of this approach is that it does not consider the accessibility and availability of these food sources, as only a fraction of them were usable by humans.

The research team assumes that early habitation in Europe involved highly complex processes of advance, retreat, abandonment and resettlement, driven by climatic changes as well as humans’ ability to adapt. The “Our Way Model” simulates human dispersal in two main steps: first, combining climate and archaeological data to model the Human Existence Potential (HEP), and second, modelling the human population dynamics constrained by the HEP. HEP defines the likelihood of human existence under climate and environmental conditions for a given culture. This vital quantity is estimated using an HEP model that takes into account paleoclimatic data for known archaeological sites. This machine learning approach constructs the climatic constraints for the Aurignacian culture, estimating which climate conditions humans of that culture preferred to live in. The trained model is then applied to estimate the spatial and temporal HEP patterns using data simulated by the so-called Global Climate Model as well as oxygen isotope data from Greenland ice cores.

The results showed that a first phase of relatively slow westward expansion from the Levant to the Balkans (approximately 45.000 to 43.000 years ago) was followed by a second phase of rapid expansion into western Europe (approximately 43.250 to 41.000 years ago). Although interrupted by brief setbacks, Homo sapiens populations now rapidly reached an estimated number of 60.000 people across Europe, spread across all the known archaeological sites during this period. The subsequent third phase was characterized by a decline in the human population, both in terms of its size and density as well as the area occupied by the population (41.000 to 39.000 years ago). This development resulted from a prolonged severe cold period which lasted almost 3.000 years, known as the GS9/HE4 period.  However, according to the model, humans survived in the climate shadows of large topography (e.g., the Alpes), which they had just occupied in the previous phase. In the fourth phase, when HEP conditions improved again, the population quickly recovered and grew further, starting at around 38.000 years ago. Regional increases in population density and further advances into previously unsettled areas of Great Britain and the Iberian Peninsula, which the model showed, are broadly in line with the archaeological evidence.

The HEP maps indicate that at the end of this process, parts of the human population were better adapted to cold climatic conditions than others, allowing them to push the boundaries of previously settled environments. “Regional studies can hardly capture all factors at play when trying to reconstruct human dispersal, including how they work together at different scales and contribute to overall long-term trends. This is a major advantage of the new modelling approach”, said Dr Isabell Schmidt at the Department of Prehistoric Archaeology.

In further research, the team will test the underlying assumptions made in the model, focusing on the role of cultural evolution in the human dispersal process. The project Human and Earth System Coupled Research (HESCOR) at the University of Cologne will integrate further aspects of Human-Earth system interactions into the model.

Article Source: University of Cologne news release. Image, Top Left: Pixabay

*Reconstruction of human dispersal during Aurignacian on pan-European scale, Nature Communications, 28-Aug-2024. 10.1038/s41467-024-51349-y 

________________________________

Advertisement

EXPLORE THE ANCIENT ETRUSCANS IN PERSON!
Experience a unique, up-close-and-personal hike among ancient hilltop towns in central Italy. You will walk the sensational countryside of the regions of Umbria and Tuscany, soaking in important sites attesting to the advanced Etruscan civilization, forerunners of the ancient Romans; imposing architectural and cultural remains of Medieval Italy; local food and drink; and perhaps best of all — spectacular scenic views! Join us in this collaborative event for the trip of a lifetime!

Political Collapse: Lessons From Fallen Empires

Richard E. Blanton is professor emeritus of anthropology at Purdue University.

Gary M. Feinman is a MacArthur Curator of Anthropology at the Field Museum of Natural History in Chicago, Illinois.

Stephen A. Kowalewski is professor emeritus of anthropology at the University of Georgia.

Lane F. Fargher-Navarro is the director of research at the Past Foundation, Ohio State University.

Our investigation of the disastrous society-wide collapses of four premodern polities, China’s Ming Dynasty, the South Asian Mughal Empire, the High Roman Empire, and Renaissance Venice led to the discovery of an unexpected historical pattern. This revelation was not evident before these sudden collapses as all four polities had demonstrated forms of governance that persisted for centuries, had been among the wealthiest and best-governed polities of their eras, and had embraced policies fostering inclusiveness and egalitarianism that engendered strong support from the majority of their citizens.

We could not identify any exogenous causal factors for the collapses—such as drought, epidemic, or conquest by a more powerful foe (three of the four eventually were conquered, but only after their governments were considerably weakened)—adding to our confusion about what led to these major political transformations.

To understand the reasons for the political breakdowns, we decided to revisit an earlier article in which we had posited an answer to this question when it became increasingly clear to us that the conflictive political culture of the contemporary U.S. presents striking parallels with what we had discovered. We aim to reexamine our article to bring a comparative perspective on historically well-known episodes of collapse, their causes, and negative outcomes, and to alert U.S. citizens of the potential dangers we face, so we can highlight the need to take urgent corrective actions. We begin by referring to recent works by political scientists and anthropologists that provided theoretical context for our arguments.

Collective Action Theory Expands Our Understanding of Governance

In all four instances, collapse followed quickly after the leaders of these polities inexplicably and suddenly abandoned principles and practices that had successfully underpinned state-building and social stability. Their actions initiated a cascading series of events that brought a rapid decline in many aspects of society, which extended beyond the government. But why would the actions of just a few people have such severe consequences for otherwise endurable and well-organized polities?

We identified a plausible answer to this question when we considered collapse from the vantage of recently developed theories of human cooperation developed by political economists Margaret Levi and Elinor Ostrom, along with several others. The cooperation ideas intrigued us because they potentially laid down a pathway to evaluate traditional claims that state-building did not result from cooperation in premodern times, but from the actions of the autocratic elite who coercively gained dominion over subservient and easily mystified subaltern subjects. A reliance on coercion was foundational for the traditional Western understanding that the rise of democracy in Classical Athens 2,600 years ago was an exceptional event that set Western (“Occidental”) political history on a separate and democratic track, sharply different from the “Oriental” autocracies. But is this entrenched presumption correct?

Humans as ‘Contingent Cooperators’

The most salient feature of collective action theory separating it from the Orientalist tradition is that it does not presume mystified subaltern subjects nor coercive leadership. The theory hypothesizes that both ruling authorities and subjects are thoughtful social actors (“contingent cooperators”) who will agree to limit their selfish actions when they perceive that the actions of others are consistent with mutual benefit (“contingent mutuality”).

Our recent work in this regard has supported the hypothesis as applied to state formation. What we have found is that subjects are more likely to gain confidence in governing authorities and the policies and practices of a government based on the degree to which the leadership willingly provides elements of what is called “good government” (or “good governance”).

Good governance includes the degree to which leadership will accept limits on its power, is willing to develop the governing capacity to identify and punish official corruption, is willing to provide citizens access to an impartial judiciary, and is prepared to implement equitable taxation, to open up access to positions of governing authority without favoritism, and to provide public goods beneficial to all households.

A key aspect of good governance is that if its benefits foster citizen confidence and compliance with obligations, its practices and principles must be judiciously adhered to, and good governance benefits must be made available across the realm without favoritism. We discovered that in instances where mutual benefit and good governance are key, state-builders and citizens recognized that impartiality was threatened when a leader’s power, or the state itself, was religiously sacralized. The same threat was felt when the state gained legitimacy and fiscal benefit by associating or controlling a particular religious institution (analogous to the contemporary concept of separation of church and state).

The population of Renaissance Venice, for example, was largely Catholic, yet featured considerable cultural diversity while also depending on trade relations with merchants who belonged to diverse cultures and religions. Correspondingly, strict rules prohibited affiliations of the leadership and their immediate family members with any religious institution. In South Asia, the Mughal Emperor Akbar instituted a strong program for governing in a diverse region that mandated religious neutrality of the state and encouraged reasoned dialogues between religious and political leaders. The Roman and Ming leaderships certified their legitimacy to govern, not as religiously sanctified beings, but as leaders whose actions were expected to benefit society. The policy of the Ming Dynasty also emphasized the need for neutrality in its dealings with the three main religions of its time.

A Cross-Cultural Study of Premodern States

We coded the good governance attributes across a worldwide sample of 30 premodern polities, and subsequent archaeological work by us and others has provided additional pertinent data. We also considered other variables that we hypothesized might enrich our understanding of the causes and consequences of mutual benefit and good governance; for example, we coded for demographic trends, which are population growth/loss, material standard of living of households, and the frequency of political struggles and organized opposition to state policies and practices. We also coded the relative severity of social, demographic, and agricultural changes after the collapse of the four polities.

Was Western Political History Really Unique?

Armed with a new theory, good governance measures to evaluate it, and a vast array of descriptive studies available from ethnographic, historical, and archaeological sources, we dwelled on the question: Was Western political history really unique? We know that coercive and autocratic states did exist in the past, as they still do today, but were there also experiments in state-building, outside of Western history, which were based on contingent mutual benefit and good governance, and were they similar to democracy? The coding of good governance variables yielded a surprising answer to this question as we were able to identify such experiments.

Although there is considerable variation in the details of governance across these cases, we identified forms of governing outside of Western history in which the central force guiding political change was contingent on the bond of obligation between governing authorities and subjects rather than on coercion. Further, in such cases, we also found that mutual benefit and good governance brought numerous advantageous downstream consequences for their respective populations.

For example, compared with the more autocratic and coercive states, the collectively organized polities were more politically stable, in part because public safety was greatly enhanced, there were far fewer episodes of anti-state movements (although disgruntled elites often would militate against the more egalitarian and inclusive policies), and there was a reduction in the frequency of internal conflicts between ethnic groups or religious groups.

As a result of these outcomes, resulting in part from the fact that states organized based on mutual benefit and good governance, citizens were provided with opportunities to engage in cooperative social interactions and alignments that could bridge social, cultural, and economic cleavages. Good governance, for one, was a fertile ground for commercial growth in the form of marketplace economies that provided new opportunities and increased living standards for buyers and sellers irrespective of wealth, patrimony, or rural-urban setting. Marketplace economies grew alongside other institutional outcomes, including open recruitment to positions of governing authority, which provided entirely new pathways to social mobility for the public. Well-organized and more livable cities, which were easy to navigate, also enhanced possibilities for commingling, cooperative interactions, and bridged social alignments weakening the likelihood of antagonism between different groups.

The collective action theory is an action-oriented framework that focuses on the idea that diverse webs of cooperative action in society are engendered by the palpable social actions of persons who want to realize collective benefits. In relation to leadership, this requires a display of commitment to carrying out the necessary and often challenging work of good governance.

Patterns of Stability and Collapse: Three Counterintuitive Discoveries

To confirm that premodern governments could, in some respects, display features that we associate with contemporary democracy was itself a surprise, but we discovered other unanticipated aspects of premodern governance:

Endurability: Despite the obvious advantages in cases where we see a focus on mutual benefit and good governance, their focal periods (the period when a particular set of policies and principles remained stable) were only slightly longer, at 166 years on average, compared to the more autocratic polities with focal periods of 152 years, a difference that is not statistically significant. In addition, polities built more strongly around mutual benefit occurred relatively infrequently (only 27 percent of our sample had consistently high scores for good governance). This shows that despite the advantages of mutual benefit and good governance, they have been difficult to build and sustain in the long run.

Collapse Patterns: Further, while providing many more benefits to their citizens compared to autocratic polities, states that organized to achieve good governance also had more of a collapse pattern than polities that scored lower on good governance. That pattern includes the emergence of damaging factional struggles for power, the loss of fiscal viability of the state, and even food shortages and demographic decline.

Collapse in the case of autocracies brought less serious consequences because, lacking much in the way of governance, groups such as neighborhoods, ethnic groups, and rural communities were already organized at the local level to respond to hazards. Yet, this fragmented form of adaptation was itself problematic, precluding coordinated responses to, for example, urban fires, lawlessness, or the actions of wealthy entrepreneurs who, lacking any opposition from a well-organized authority, were in a position to distort fair marketplace pricing.

Initiating Collapse: Earlier we mentioned the separation of religion and state because, although violating its premise was not the only misstep exhibited by the respective leaderships, it was among the most damaging. In Ming China, collapse followed the actions of leaders of the mid-16th century, including the Chia-ching Emperor, who became so obsessed with Daoist ceremonies and alchemy that he neglected his duties; his successor, the Wanli Emperor, turned his attention to gaining personal wealth, a violation of long-standing prohibitions. In the case of the Mughals, the fourth emperor, convinced by Muslim leaders, abandoned religious neutrality, even taxing Hindus more than Muslims and permitting the destruction of new temples. The Roman Emperor Commodus lacked interest in governing and became an avid performer as a gladiator. He identified himself with the god Hercules. Following his failed reign, the empire devolved into a chaotic and corrupt system in which, as the historian Ramsay MacMullen concluded, “relationships involving anything other than the wish for material possession had no chance to develop.”

The case of Venice is particularly troubling in light of what has transpired in recent years in the U.S. Although the Venetian government possessed the institutional capacity to impeach leaders, when Doge Giovanni Cornaro and his family broke the religious neutrality and other rules, for example, as a result of his son accepting the position of Bishop of Bergamo, the governing council refused to impeach him. This action, regarded by many inside and outside of the government as a violation of long-standing rules, was not corrected, and the governing council’s response to criticism was to double down on its authority. These moves, according to the historian John Norwich made the council ever more unpopular both with the citizens and other organs of government and precipitated a rapid unwinding of the societal threads that had, for centuries, underpinned inclusive forms of cooperation and devotion to a governing system that aimed to realize the common good.

It is important to note that these polities had developed the governing capacity to productively address various expressions of social malfeasance, including administrative corruption and shirking and free riding among citizens that could challenge the confidence of people in each other and the government. Yet, when it was the leadership that turned away from meeting expectations—including diligence in sustaining a system of governance and maintaining its religious neutrality—all the governments in question illustrated a key vulnerability: they lacked the institutional capacity to punish leadership displaying self-serving acts contrary to the pursuit of societal benefit.

Moral Collapse and Its Relevance to Contemporary U.S. Politics

Like the societies we have discussed, the original charters of the U.S. government featured mutual moral obligations between governing authorities and citizens at their core and specified key governing precepts, including the rule of law, the peaceful transfer of power, inclusion, checks and balances on the concentration of power, and the separation of church and state. Over more than two centuries, these principles, although sometimes opposed, have largely been followed. But now they face serious challenges from the presumptive leadership of the Republican Party and influential governing bodies including the Supreme Court.

These challengers reject the notions of inclusiveness and lawfulness embedded in the original charters in a way that does not align with what the majority of American citizens believe and would like to preserve. In particular, challengers deviate from broad sensibilities both when they show strong support for the idea that white nationalist ideologies and religious fundamentalism should serve as the religious foundation for our governing practices and principles, and when they assert their belief that violence is an acceptable means to achieve political goals in the face of opposition.

We hope that our discussion of historical cases is a reminder that mutual benefit and good governance succeed or fail based on the choices of contingently cooperative citizens. Contingency implies that, as in Venice and the other cases we pointed out, the loss of citizen confidence in the leadership can trigger an unexpected unwinding of the societal threads that underpin inclusive forms of cooperation and devotion to a governing system designed to realize common good.

Cover Photo, Top Left: Ruins of the Temple of Jupiter of the ancient Roman Empire. djedj, Pixabay

______________________________

This article was produced by Human Bridges.

What a submerged ancient bridge discovered in a Spanish cave reveals about early human settlement

UNIVERSITY OF SOUTH FLORIDA—TAMPA, Fla. (Aug. 27, 2024) A new study led by the University of South Florida has shed light on the human colonization of the western Mediterranean, revealing that humans settled there much earlier than previously believed. This research, detailed in a recent issue of the journal, Communications Earth & Environment, challenges long-held assumptions and narrows the gap between the settlement timelines of islands throughout the Mediterranean region.

Reconstructing early human colonization on Mediterranean islands is challenging due to limited archaeological evidence. By studying a 25-foot submerged bridge, an interdisciplinary research team – led by USF geology Professor Bogdan Onac – was able to provide compelling evidence of earlier human activity inside Genovesa Cave, located in the Spanish island of Mallorca.

“The presence of this submerged bridge and other artifacts indicates a sophisticated level of activity, implying that early settlers recognized the cave’s water resources and strategically built infrastructure to navigate it,” Onac said.

The cave, located near Mallorca’s coast, has passages now flooded due to rising sea levels, with distinct calcite encrustations forming during periods of high sea level. These formations, along with a light-colored band on the submerged bridge, serve as proxies for precisely tracking historical sea-level changes and dating the bridge’s construction.

Mallorca, despite being the sixth largest island in the Mediterranean, was among the last to be colonized. Previous research suggested human presence as far back as 9,000 years, but inconsistencies and poor preservation of the radiocarbon dated material, such as nearby bones and pottery, led to doubts about these findings. Newer studies have used charcoal, ash and bones found on the island to create a timeline of human settlement about 4,400 years ago. This aligns the timeline of human presence with significant environmental events, such as the extinction of the goat-antelope genus Myotragus balearicus.

By analyzing overgrowths of minerals on the bridge and the elevation of a coloration band on the bridge, Onac and the team discovered the bridge was constructed nearly 6,000 years ago, more than two-thousand years older than the previous estimation – narrowing the timeline gap between eastern and western Mediterranean settlements.

“This research underscores the importance of interdisciplinary collaboration in uncovering historical truths and advancing our understanding of human history,” Onac said.

This study was supported by several National Science Foundation grants and involved extensive fieldwork, including underwater exploration and precise dating techniques. Onac will continue exploring cave systems, some of which have deposits that formed millions of years ago, so he can identify preindustrial sea levels and examine the impact of modern greenhouse warming on sea-level rise.

This research was done in collaboration with Harvard University, the University of New Mexico and the University of Balearic Islands.

### 

About the University of South Florida

The University of South Florida, a high-impact research university dedicated to student success and committed to community engagement, generates an annual economic impact of more than $6 billion. With campuses in Tampa, St. Petersburg and Sarasota-Manatee, USF serves approximately 50,000 students who represent nearly 150 different countries. U.S. News & World Report has ranked USF as one of the nation’s top 50 public universities for five consecutive years, and this year USF earned its highest ranking ever among all universities public or private. In 2023, USF became the first public university in Florida in nearly 40 years to be invited to join the Association of American Universities, a prestigious group of the leading universities in the United States and Canada. Through hundreds of millions of dollars in research activity each year and as one of the top universities in the world for securing new patents, USF is a leader in solving global problems and improving lives. USF is a member of the American Athletic Conference. Learn more at www.usf.edu.

_______________________

View of the submerged stone bridge from Genovesa Cave, Mallorca, Spain. R. Landreth

_______________________

Close-up view of the submerged stone bridge from Genovesa Cave, Mallorca, Spain. R. Landreth

_______________________

Phreatic overgrowths on speleothems grow exactly at sea level, pictured above the diver in the Galeria de les Delícies in Drac Cave, Mallorca, Spain, offering a more accurate reconstruction of past sea level history. Note the submerged stalagmites that grew when sea level was much lower. M.À. Perelló

_______________________

Stone path connecting the entrance in Genovesa Cave, Mallorca, Spain, and its subterranean lake across which the bridge was constructed. B. Onac

_______________________

Article Source: University of South Florida news release.

Among Viking societies, Norway was much more violent than Denmark

UNIVERSITY OF SOUTH FLORIDA—TAMPA, Fla. (Aug. 28, 2024) Rates of violence in Viking Age Norway and Denmark were long believed to be comparable. A team of researchers including University of South Florida sociologist David Jacobson challenges that assumption.

Their findings* show that interpersonal violence – violence not meted out as punishment by authorities — was much more common in Norway. This is evident in the much greater rates of trauma on skeletons and the extent of weaponry in Norway. The study, published in the Journal of Anthropological Archaeology, sheds new light on how Viking Age societies in Norway and Denmark differed in their experiences with violence and the role social structures played in shaping those patterns.

Jacobson is part of an interdisciplinary team that combined archaeology and sociology along with the study of skeletons and of runestones – raised stones bearing inscriptions – to reveal key differences in how violence, social hierarchies and authority influenced these dynamics in the two regions. The other scholars on the team are from Norway and Germany.

“The interdiscipilinary approach taken in this study shows us how social and political patterns can be revealed, even when there are a paucity of written sources,” Jacobson said.

Norway: A More Violent Society?

Researchers analyzed skeletal remains from Viking Age Norway and Denmark and found that 33% of the Norwegian skeletons showed healed injuries, indicating that violent encounters weren’t uncommon. By comparison, 37% of the skeletons showed signs of lethal trauma, highlighting the frequent and often fatal use of weapons in Norway.

A notable feature in Norway was the presence of weapons, particularly swords, alongside skeletons in graves. The study identified more than 3,000 swords from the Late Iron Age and Viking periods in Norway, with just a few dozen in Denmark. These findings suggest weapons played a significant role in Norwegian Viking identity and social status – further emphasizing the culture’s connection to violence.

Denmark: Steeper Social Hierarchies and Controlled Violence

In Denmark, the findings show a different pattern. Danish society was more centralized, with clearer social hierarchies and stronger central authority. Violence was more organized and controlled, often linked to official executions rather than acts of personal violence.

For example, skeletal remains in Denmark showed fewer signs of weapon-related injuries but included evidence of executions such as decapitations. Skeletal evidence suggests about 6% of Viking Danes died violently, almost all from executions.

Denmark’s more structured society also had a smaller percentage of graves containing weapons than Norway’s. Instead, social order was maintained through political control, reflected in the construction of large earthworks and fortifications. These monumental structures, particularly during the reign of King Harald Bluetooth in the 10th century, demonstrated Denmark’s greater capacity for coordinated labor and more organized social hierarchies.

Why the Differences?

The study suggests that Denmark’s more rigid social structure meant that violence was less frequent but more systematically enforced through official channels, such as executions. Meanwhile, Norway’s more decentralized society experienced more peer-to-peer violence, as indicated by the higher levels of trauma found in skeletons.

The findings also support the broader theory that stronger authority and steeper social hierarchies can reduce the overall levels of violence in a society by centralizing the use of force under official control.

“The findings of these patterns suggest that we are talking of distinct societies in the regions of Norway and Denmark,” Jacobson said. “This is quite striking, as the assumption has been that socially Viking Scandanavia was largely a singular space.”

Broader Implications

The research contributes to a growing body of work that explores how social structures influenced violence in historical societies. Similar patterns have been observed in other parts of the world, such as the Andes region of South America and in areas of North America, where less centralized societies also experienced higher levels of violence.

Jacobson said he hopes the study “is a step towards a new explanatory model, especially when written sources from the period are partial or even nonexistent.”

Note: Scholars from the University of Oslo, Deutscher Verband für Archäologie in Germany and the Norwegian University of Science and Technology also were part of the research team.

### 

About the University of South Florida 

The University of South Florida, a high-impact research university dedicated to student success and committed to community engagement, generates an annual economic impact of more than $6 billion. With campuses in Tampa, St. Petersburg and Sarasota-Manatee, USF serves approximately 50,000 students who represent nearly 150 different countries. U.S. News & World Report has ranked USF as one of the nation’s top 50 public universities for five consecutive years, and this year USF earned its highest ranking ever among all universities public or private. In 2023, USF became the first public university in Florida in nearly 40 years to be invited to join the Association of American Universities, a prestigious group of the leading universities in the United States and Canada. Through hundreds of millions of dollars in research activity each year and as one of the top universities in the world for securing new patents, USF is a leader in solving global problems and improving lives. USF is a member of the American Athletic Conference. Learn more at www.usf.edu.

___________________________

From the Viking skeletal study: A skull displaying blunt force trauma with radiating lines. Lisa Mariann Strand

___________________________

From the Viking skeletal study: Antemortem damage is observable with remodeling of the occipital bone. Lisa Mariann Strand

___________________________

From the Viking skeletal study: Weapon related lesions identified on sacrum side and tibia. Lisa Mariann Strand

___________________________

Article Source: UNIVERSITY OF SOUTH FLORIDA news release.

What role did fear play in Europe’s population growth?

COMPLEXITY SCIENCE HUB—[Vienna, August 26 2024] – Since the end of the last Ice Age, growth of human population was far from uniform, marked instead by periods of rapid expansion followed by sharp declines. The reasons behind these fluctuations remain only partially understood. Previous research by CSH scientists Peter TurchinDaniel Kondor, and an international team of collaborators, demonstrated that social conflicts, rather than – or in addition to – environmental factors, could have significantly impacted these patterns. Now, they add another piece to the puzzle.

Wars and conflicts not only cause direct casualties but also create an atmosphere of distress and fear. This fear, by affecting where and how people settle, could have influenced substantially how the population in Europe developed, as shown in a study published in the Journal of the Royal Society Interface.

Flight And Overpopulation

“Globally, scientists have extensively studied and debated the presence and role of conflicts in prehistory. However, estimating their effects, such as those on population numbers is still difficult,” explains Daniel Kondor from CSH. “This is even more complicated by potential indirect effects, like people who, out of fear, leave their homes or avoid certain areas.”

These indirect impacts of conflict could have caused significant, long-term population fluctuations in non-state societies, such as in Neolithic Europe (circa 7,000 BC to 3,000 BC), according to the study’s findings. “Our model shows that fear of conflict led to population declines in potentially dangerous areas. As a result, people concentrated in safer locations, such as hilltops, where overpopulation could lead to higher mortality and lower fertility,” Kondor explains. 

Matching Archaeological Evidence

The ongoing threat would prevent the settlement of much of the remaining land. Co-author Detlef Gronenborn from the Leibniz Centre for Archaeology (LEIZA) in Mainz, Germany, adds: “The results from the simulation studies nicely match empirical evidence from archaeological field work, like for instance the Late Neolithic site of Kapellenberg near Frankfurt, dating to around 3700 BCE. Like there, we have many instances of a temporal abandonment of open agricultural land, associated with a retreat of groups to well-defendable locations and considerable investments in large-scale defense systems like ramparts, palisades and ditches.”

“This concentration of people in specific, often well-defended locations could have led to increasing wealth disparities and political structures that justified these differences,” adds Peter Turchin from CSH. “In that way, indirect effects of conflict might have also played a crucial role in the emergence of larger political units and the rise of early states.”

Complexity Science Meets Archaeology

To simulate population dynamics in Neolithic Europe, the researchers developed a computational model. To test the model, they utilized a database  of archaeological sites, analyzing the number of radiocarbon age-measurements from various locations and time periods, under the assumption that this reflects the scale of human activities, and thus, ultimately, population numbers. “This allows us to examine the typical amplitudes and timescales of population growth and decline across Europe,” Kondor explains. “Our goal was for our simulation to reflect these patterns.”

In the future, the model could help interpret archaeological evidence, such as signs of overpopulation or land use patterns, which in turn can provide necessary context and data for further refinements to modeling. This is a typical example of interdisciplinary collaboration that CSH aims to foster. “Using complexity science methods, we develop mathematical models to analyze the rise and fall of complex societies and identify common factors,” Turchin explains. This involves collecting vast amounts of historical data, managed in specialized databases like the Seshat Global History Databank. “For the most complete picture possible, direct collaboration with archaeologists is immensely important. This study is a great example of the potential that such interdisciplinary collaboration can have,” Kondor emphasizes.

_____________________________

About CSH

The Complexity Science Hub (CSH) is Europe’s research center for the study of complex systems. We derive meaning from data from a range of disciplines – economics, medicine, ecology, and the social sciences – as a basis for actionable solutions for a better world. Established in 2015, we have grown to over 70 researchers, driven by the increasing demand to gain a genuine understanding of the networks that underlie society, from healthcare to supply chains. Through our complexity science approaches linking physics, mathematics, and computational modeling with data and network science, we develop the capacity to address today’s and tomorrow’s challenges.

_____________________________

Visualisation of situation around 3700 BCE. Magistrat der Stadt Hofheim; LEIZA-Leibniz-Zentrum für Archäologie, Architectura Virtualis 2020 www.leiza.de/kapellenberg

_____________________________

Article Source: COMPLEXITY SCIENCE HUB news release.

Wood charcoal reveals the existence of a variety of woody plants around early millet sites and people started pruning, protecting and managing Prunus fruit trees as early as 8000 yr BP.

SCIENCE CHINA PRESS—This study* is led by Hui Shen, Keliang Zhao, Xinying Zhou, Xiaoqiang Li from the Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, and Zhenwei Qiu from National Museum of China. The researchers have reconstructed how early millet farmers explored and shaped local woody plants, and the protection and management of Prunus fruit trees to acquire more food resources since 8000 yr BP.

Early evidence of wheat and cotton in Nigeria

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES—Archaeological wheat and cotton remains reveal sophisticated trade networks and agricultural experimentation in Medieval West Africa, according to a study. Free-threshing wheat (Triticum aestivum and Triticum durum) and old-world cottons (Gossypium arboreum and Gossypium herbaceum) were introduced to West Africa as part of Trans-Saharan trade networks. Previous research on wheat and cotton in the region has been limited to arid sites associated with the arrival of Islamic merchants. Amanda Logan and colleagues analyzed archaeological wheat and cotton remains from the major Medieval urban center of Ilé-Ifè, Nigeria, located in a humid tropical forest. Analysis of 353 charred cotton seeds and seed coat fragments revealed that fiber was probably cultivated and manufactured into cloth locally. Two directly dated cotton seeds yielded dates of around 1201–1224 CE, which is roughly contemporaneous with cotton remains from arid sites further north. The authors identified 48 well-preserved grains of free-threshing wheat at the site and dated four grains to 1294–1397 CE. Wheat was likely imported to the site, given that the humid forest environment is not suitable for local cultivation. The authors suggest that cotton cloth and wheat likely represented luxury goods in the region. According to the authors, the rapid adoption of cotton illustrates a highly developed trade in commodity crops across Africa, centuries before cotton became central to European global trade.

____________________________

Profile of deep pit where wheat was found at Oduduwa College in Ilé-Ifè, Nigeria. Gérard Chouin, Ife-Sungbo Archeological Project

____________________________

Article Source: PNAS news release.

*“Early archaeological evidence of wheat and cotton from medieval Ile-Ife, Nigeria” by Amanda L. Logan et al., PNAS, 26-Aug-2024. https://www.pnas.org/cgi/doi/10.1073/pnas.2403256121

Cover Image, Top Left: ammeelamz, Pixabay

To kill mammoths in the Ice Age, people used planted pikes, not throwing spears, researchers say

UNIVERSITY OF CALIFORNIA – BERKELEY—How did early humans use sharpened rocks to bring down megafauna 13,000 years ago? Did they throw spears tipped with carefully crafted, razor-sharp rocks called Clovis points? Did they surround and jab mammoths and mastadons? Or did they scavenge wounded animals, using Clovis points as a versatile tool to harvest meat and bones for food and supplies?

UC Berkeley archaeologists say the answer might be none of the above.

Instead, researchers say humans may have braced the butt of their pointed spears against the ground and angled the weapon upward in a way that would impale a charging animal. The force would have driven the spear deeper into the predator’s body, unleashing a more damaging blow than even the strongest prehistoric hunters would have been capable of on their own.

Drawing upon multiple sources of writings and artwork, a team of Berkeley archaeologists reviewed historical evidence from around the world about people hunting with planted spears. 

They also ran the first experimental study* of stone weapons that focused on pike hunting techniques, revealing how spears react to the simulated force of an approaching animal. Once the sharpened rock pierced the flesh and activated its engineered mounting system, they say, the spear tip functioned like a modern day hollow-point bullet and could inflict serious wounds to mastodons, bison and saber-toothed cats.

“This ancient Native American design was an amazing innovation in hunting strategies,” said Scott Byram, a research associate with Berkeley’s Archeological Research Facility and first-author of a paper on the topic published today in the journal PLOS ONE. “This distinctive Indigenous technology is providing a window into hunting and survival techniques used for millennia throughout much of the world.”

The historical review and experiment may help solve a puzzle that has fueled decades of debate in archaeology circles: How did communities in North America actually use Clovis points, which are among the most frequently unearthed items from the Ice Age?

Named for the town of Clovis, New Mexico, where the shaped stones were first recovered nearly a century ago, Clovis points were shaped from rocks, such as chert, flint or jasper. They range from the size of a person’s thumb to that of a midsize iPhone and have a distinct, razor-sharp edge and fluted indentations on both sides of their base. Thousands of them have been recovered across the U.S. — some have even been unearthed within preserved mammoth skeletons. 

They’ve also been a pop culture plot point. Characters in the video game “Far Cry Primal” use spears tipped with stone points to ambush mastodons. The movie 10,000 B.C. uses a similar spear to hunt mammoths. Scholars and hobbyists reconstruct Clovis points — and some even document on YouTube the process of building them and using them to hunt bison.

Those depictions make for a good story. But they likely fail to consider the realities of life in the Ice Age, said Byram and his co-author, Jun Sunseri, a Berkeley associate professor of anthropology. 

Clovis points are often the only recovered part of a spear. The intricately designed bone shafts at the end of the weapon are sometimes found, but the wood at the base of the spear and the pine pitch and lacing that help make them function as a complete system have been lost to time. 

Plus, research silos limit that kind of systems thinking about prehistoric weaponry, Jun said.  And if stone specialists aren’t experts in bone, they might not see the full picture.

“You have to look beyond the simple artifact,” he said. “One of the things that’s key here is that we’re looking at this as an engineered system that requires multiple kinds of sub-specialties within our field and other fields.”

Building tools as strong, effective systems was likely a priority for communities 13,000 years ago. The tools needed to be resilient. The people had a limited number of suitable rocks to work with while traversing the land. They might go hundreds of miles without access to the right kind of long, straight poles from which to fashion a spear. So it stands to reason they wouldn’t want to risk throwing or destroying their tools without knowing if they’d even land the animal, said Byram, who mined archival records, spanning anthropology to art to Greek history, to trace the arc of planted pikes as weapons.

“People who are doing metal military artifact analysis know all about it because it was used for stopping horses in warfare,” Byram said. “But prior to that, and in other contexts with boar hunting or bear hunting, it wasn’t very well known. It’s a theme that comes back in literature quite a bit. But for whatever reason, it hasn’t been talked about too much in anthropology.”

To evaluate their pike hypothesis, the Berkeley team built a test platform measuring the force a spear system could withstand before the point snapped and/or the shaft expanded. Their low-tech, static version of an animal attack using a braced, replica Clovis point spear allowed them to test how different spears reached their breaking points and how the expansion system responded. 

It was based on prior experiments where researchers fired stone-tipped spears into clay and ballistics gel — something that might feel like a pinprick to a 9-ton mammoth.

“The kind of energy that you can generate with the human arm is nothing like the kind of energy generated by a charging animal. It’s an order of magnitude different,” Jun said. “These spears were engineered to do what they’re doing to protect the user.”

The experiment put to the test something Byram had mulled for decades. When he was in graduate school and analyzing prehistoric stone tools, he crafted replica Clovis points and fashioned spears using traditional techniques. He remembered thinking how time-intensive a process it was to invest in a stone Clovis point — and how important it would be for the point to function effectively.

“It just started to make sense to me that it actually had a different purpose than some of the other tools,” Byram said. “Unlike some of the notched arrowheads, it was a more substantial weapon. And it was probably also used defensively.”

Conversations around a campfire early in the pandemic between Jun, a zooarchaeologist who learned from local communities during his time in Africa, and Kent Lightfoot, a Berkeley anthropology professor emeritus, prompted them to dig into the mystery. Through talks with his VhaVenda mentors, Jun learned how the engineering that went into the butt of some spears was just as critical as the work that went into the points. 

“The sophisticated Clovis technology that developed independently in North America is testimony to the ingenuity and skills that early Indigenous people employed in their cohabitation of the ancient landscape with now-extinct megafauna,” said Lightfoot, a co-author of the study.

In the coming months, the team plans to further test its theory by building something akin to a replica mammoth. Using a type of slide or pendulum, they hope to simulate what an attack might have looked like as a planted Clovis-tipped pike made impact with a massive, fast-moving mammal.   

“Sometimes in archaeology, the pieces just start fitting together like they seem to now with Clovis technology, and this puts pike hunting front and center with extinct megafauna,” Byram said. “It opens up a whole new way of looking at how people lived among these incredible animals during much of human history.”

____________________________

Clovis points are distinguishable, in part, due to their distinctive flute or channel flake scar near the base, as shown in these replicas. UC Berkeley researchers studied how the points functioned as part of a system and were used to bring down megafauna in the Ice Age. Courtesy of Scott Byram

____________________________

A high-speed photo sequence during a test after an 11.34 kg weight was dropped from 35 cm shows various moments as the stone point recedes into and splinters the pike shaft. Researchers said the way the stone point could have pierced animal flesh and the wood-and-bone shaft opened up suggests that the spear as a system functioned similar to a hollow-point bullet. Courtesy of Scott Byram

____________________________

Article Source: University of California – Berkeley news release

*Clovis points and foreshafts under braced weapon compression: Modeling Pleistocene megafauna encounters with a lithic pike, PLoS ONE, 21-Aug-2024. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0307996

____________________________

Advertisement

EXPLORE THE ANCIENT ETRUSCANS IN PERSON!
Experience a unique, up-close-and-personal hike among ancient hilltop towns in central Italy. You will walk the sensational countryside of the regions of Umbria and Tuscany, soaking in important sites attesting to the advanced Etruscan civilization, forerunners of the ancient Romans; imposing architectural and cultural remains of Medieval Italy; local food and drink; and perhaps best of all — spectacular scenic views! Join us in this collaborative event for the trip of a lifetime!

Fossil hotspots in Africa obscure a more complete picture of human evolution

GEORGE WASHINGTON UNIVERSITY—WASHINGTON (August 20, 2024) – Much of the early human fossil record originates from just a few places in Africa, where favorable geological conditions have preserved a trove of fossils used by scientists to reconstruct the story of human evolution. One of these fossil hotspots is the eastern branch of the East African Rift System, home to important fossil sites such as Oldupai Gorge in Tanzania. Yet, the eastern branch of the rift system only accounts for 1% of the surface area of Africa—a fact that makes it possible to estimate how much information scientists who rely on such small samples are missing.

In a new study* published today in the journal Nature Ecology & Evolution, researchers at the George Washington University show the extent to which the concentration of sites in hotspots like the East African Rift System biases our understanding of human evolution and why scientists must take that bias into account when interpreting early human history.

“Because the evidence of early human evolution comes from a small range of sites, it’s important to acknowledge that we don’t have a complete picture of what happened across the entire continent,” says W. Andrew Barr, an assistant professor of anthropology at GW and lead study author. “If we can point to the ways in which the fossil record is systematically biased and not a perfect representation of everything, then we can adjust our interpretations by taking this into account.”

To determine the size of the bias in the fossil record, Barr and his co-author Bernard Wood, University Professor of Human Origins at GW, looked at the distribution of modern mammals that currently live in the rift valley. They found that very few medium- and large-bodied mammals are “rift specialists,” and the rift environment, in fact, represents on average 1.6 % of the total geographic range of modern mammal species.

In a second analysis, Barr and Wood looked at how the skulls of modern primates collected in the rift valley compared with the skulls of the same primates from other parts of the continent. They found that skulls from the rift valley represented less than 50% of the total variation among primate skulls in Africa.

While the science community has long recognized that the rift represents just a small sample of where ancient humans likely lived, the researchers say previous studies have not used modern mammals as analogs for human fossils to try to quantify the magnitude of the bias. Information from modern mammals can’t tell us exactly where else, and in what type of environments, our human ancestors lived, but they can provide clues that help us better understand the environments and physical differences of ancient humans, say the authors.

We must avoid falling into the trap of coming up with what looks like a comprehensive reconstruction of the human story, when we know we don’t have all of the relevant evidence”  says Wood. “Imagine trying to capture the social and economic complexity of Washington D.C. if you only had access to information from one neighborhood. It helps if you can get a sense of how much information is missing.”

The researchers also note the need for the scientific community to look beyond the rift to identify new fossil sites and expand the geographic range of the fossil record.

“There’s a smaller number of people who work outside these traditional hotspots and do the thankless labor of trying to find fossils in these contexts that are really hard to work in, where the geology isn’t favorable for finding fossils,” says Barr, whose own work involves looking for fossils beyond the hotspots. “It’s worth doing that sort of work to make our picture of mammal and human evolution from this time period more complete.”

WATCH: Hear more from Barr on the significance of these findings in this video here.

The paper, “Spatial sampling bias influences our understanding of early hominin evolution in eastern Africa,” was published August 20, 2024 in Nature Ecology & Evolution. 

_____________________________

Olduvai Gorge, a well-know hominin fossil site in the African Rift Valley. Dan Lundberg, CC-BY-SA 4.0, Wikimedia Commons

_____________________________

Article Source: George Washington University news release.

Advertisement

EXPLORE THE ANCIENT ETRUSCANS IN PERSON!
Experience a unique, up-close-and-personal hike among ancient hilltop towns in central Italy. You will walk the sensational countryside of the regions of Umbria and Tuscany, soaking in important sites attesting to the advanced Etruscan civilization, forerunners of the ancient Romans; imposing architectural and cultural remains of Medieval Italy; local food and drink; and perhaps best of all — spectacular scenic views! Join us in this collaborative event for the trip of a lifetime!

Decolonizing the past: the legacy of Minoan Archaeology

Anyone familiar with the Minoans has probably heard the term, “the first European civilization,” applied as a descriptor for this ancient society, best known historically in the popular literature as the subject of investigation by archaeologist Arthur Evans, who named the civilization after king Minos, the mythical king who reigned over the ancient Bronze Age city of Knossos on present-day Crete. And while the phrase may still hold some weight among many scholars of today, it likely also reflects the cultural and colonial mindset and disposition of the scholars and others whose lives and studies touched on the sensational discoveries that brought this advanced, early Aegean island society into the public light during the late 19th and early 20th centuries. 

Enter here PhD candidate Mnemosyne Rice, who has been intensely researching the Minoans as part of her studies in Minoan Archaeology at Trinity College, Dublin. She discusses this and other related topics in the newly released Episode 5 of the new podcast series, Aegean Connections, hosted by Dr. Ester Salgarella. In this podcast episode, entitled Decolonizing the past: the legacy of Minoan Archaeology, Rice relates that, at least in part, what we have traditionally known about the Minoans has also been about the way the material discoveries were originally and traditionally interpreted by the gentlemen scholars and others who were influenced by the environment of European Colonialism that existed at the time of their discoveries. With this knowledge and with the development of a revised understanding of the ancient Minoan people, Rice has focused her PhD thesis on the evolution and intellectual history of how the material evidence of this civilization has been presented in museums, most particularly the British Museum in London and the Ashmolean Museum in Oxford, both of which curate and present limited collections and exhibitions of the same. 

Rice also discusses the production of Linear A inscriptions (a largely undeciphered administrative script, and one of three scripts produced or used by the Minoans) as a craft, particularly on so-called non-administrative objects, such as stone vessels. She also describes and discusses her work on the project, The Many Lives of a Snake Goddess, which collects and studies the subsequent reuses of the famous Minoan Snake Goddess figure, which was first unearthed in the form of figurines at the Minoan palatial site of Knossos on Crete. 

Anyone can listen to Episode 5 for free at the podcast series, Aegean Connections.

Cover Photo, Top Left: British Museum, hulkiokantabak, Pixabay

____________________________

Advertisement

EXPLORE THE ANCIENT ETRUSCANS IN PERSON!
Experience a unique, up-close-and-personal hike among ancient hilltop towns in central Italy. You will walk the sensational countryside of the regions of Umbria and Tuscany, soaking in important sites attesting to the advanced Etruscan civilization, forerunners of the ancient Romans; imposing architectural and cultural remains of Medieval Italy; local food and drink; and perhaps best of all — spectacular scenic views! Join us in this collaborative event for the trip of a lifetime!

Technique uses dental traits instead of ancient DNA to map the spread of paleo-human populations

AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE (AAAS)—A new approach* to map the spread of humans in the Paleolithic era relies on dental features rather than traces of DNA, the latter of which so rarely found in ancient remains. Scientists validated the technique by creating demographic models based on fossilized teeth from 450 Homo sapiens specimens in Europe that lived throughout the Last Ice Age. “This opens up the exciting possibility to [investigate] archaeological time depths or regions where obtaining ancient DNA is not feasible, and where skeletal phenotypic data is the only source of information available,” Hannes Rathmann and colleagues write. Modern H. sapiens established an enduring foothold in Europe around 50 to 45 thousand years ago (kya) during the Last Ice Age. This migration coincided with the Upper Paleolithic, an age marked by sophisticated stone tool use. Yet, little is known about how Upper Paleolithic populations spread across Europe. Here, Rathmann et al. have modified an existing machine learning-based statistical framework to map European Ice Age population dynamics over time. The technique typically uses DNA to create demographic models, which researchers then compare with archaeological data. The newly adapted method instead assesses dental traits, such as the shape of tooth roots and fissure formations on dental crowns. As a test, researchers used it to catalog 20 dental features in 450 European specimens from 47 to 7 kya in age. While doing so, the model chronologically grouped specimens according to three climate periods: the Middle Pleniglacial (47 to 28 kya), the Late Pleniglacial (28 to 14.7 kya), and the Late Glacial to Early Holocene (14.7 to 7 kya). It also sorted populations into a Western group that spanned Portugal to Germany and an Eastern group that ranged from Italy to Russia. The framework developed 14 demographic models, and one – model 5 – aligned most consistently with established archaeological theories of population movement in Europe. In this scenario, Western and Eastern populations remained connected throughout the entire Middle Pleniglacial. Then, as the Late Pleniglacial began, groups in the East pushed westward, causing extinction events in West populations. As the world cooled further in the Late Pleniglacial, leading into the coldest stage of the Ice Age called the Last Glacial Maximum (LGM; 26.5 to 19 kya), East and West became geographically and genetically isolated. Once the LGM ended, migration and genetic exchange resumed.

_____________________________

Article Source: AAAS news release.

*Human population dynamics in Upper Paleolithic Europe inferred from fossil dental phenotypes, Science Advances, 16-Aug-2024. www.science.org/doi/10.1126/sciadv.adn8129

Cover Image, Top Left: Tooth. LionFive, Pixabay

_____________________________

Advertisement