Painted altar found at Tikal adds new context to mysterious Maya history

A newly discovered altar, buried near the center of the ancient Maya city of Tikal, is shedding new light on the 1,600-year-old tensions between Tikal and the central Mexican capital of Teotihuacan

Just steps from the center of Tikal, a 2,400-year-old Maya city in the heart of modern-day Guatemala, a global team of researchers including scholars from Brown University have unearthed a buried altar that could unlock the secrets of a mysterious time of upheaval in the ancient world.

The altar, built around the late 300s A.D., is decorated with four painted panels of red, black and yellow depicting a person wearing a feathered headdress and flanked by shields or regalia. The face has almond-shaped eyes, a nose bar and a double earspool. It closely resembles other depictions of a deity dubbed the “Storm God” in central Mexico.

In a study released on Tuesday, April 8, in Antiquity, the Brown researchers, along with co-authors from across the United States and Guatemala, argue that the painted altar wasn’t the work of a Maya artist. Instead, they believe it was created by a highly skilled artisan trained at Teotihuacan — the formidable ancient power whose seat was located 630 miles west, outside modern-day Mexico City.

“It’s increasingly clear that this was an extraordinary period of turbulence at Tikal,” said Stephen Houston, a professor of social science, anthropology, and history of art and architecture at Brown, who co-authored the paper. “What the altar confirms is that wealthy leaders from Teotihuacan came to Tikal and created replicas of ritual facilities that would have existed in their home city. It shows Teotihuacan left a heavy imprint there.”

Even before discovering the altar, Houston and colleagues knew the Maya interacted with Teotihuacan for centuries before their relationship became closer.

Founded in about 850 B.C., Tikal existed for generations as a small city with little influence before ballooning into a dynasty around 100 A.D. Archaeologists have evidence that Tikal and the much more powerful Teotihuacan began interacting regularly about two centuries later. What seemed at first to be a casual trading relationship, Houston said, quickly became something more contentious.

“It’s almost as if Tikal poked the beast and got too much attention from Teotihuacan,” Houston said. “That’s when foreigners started moving into the area.”

An ancient coup d’etat

Houston said that over several decades, scholars have collected mounting evidence of a less-than-friendly relationship. The research started in the 1960s, when archaeologists found a cut and mutilated stone with well-preserved text describing the conflict in broad terms. 

Thanks to the stone’s text, they learned that “around A.D. 378, Teotihuacan was essentially decapitating a kingdom,” Houston said. “They removed the king and replaced him with a quisling, a puppet king who proved a useful local instrument to Teotihuacan.”

Decades later, using light detection and ranging (LiDAR) technology, the Brown scholars and several colleagues discovered a scaled-down replica of the Teotihuacan citadel just outside the center of Tikal, buried under what archaeologists believed were natural hills. The discovery suggested that in the years leading up to its overthrow, Teotihuacan’s presence in the Maya city probably involved an element of occupation or surveillance.

Co-author Andrew Scherer, a professor of anthropology and of archaeology and the ancient world at Brown and director of the Joukowsky Institute for Archaeology and the Ancient World, said the altar was built right around the time of the coup. He said the altar’s meticulously painted exterior isn’t the only evidence of the capital’s heavy-handed presence: Inside the altar, the archaeologists found a child buried in a seated position, a rare practice at Tikal but common at Teotihuacan. They also found an adult interred with a dart point made of green obsidian; Scherer said the material and design of the dart point are distinct to Teotihuacan.

The fact that the altar and the area around it was later buried, Scherer said, cements the research team’s theory that Teotihuacan’s presence left Tikal forever changed and even scarred.

“The Maya regularly buried buildings and rebuilt on top of them,” Scherer said. “But here, they buried the altar and surrounding buildings and just left them, even though this would have been prime real estate centuries later. They treated it almost like a memorial or a radioactive zone. It probably speaks to the complicated feelings they had about Teotihuacan.”

Power begets power

“Complicated” is an apt way to describe Tikal’s collective memory of the Teotihuacan coup, Houston said. The event may have shaken Tikal to its core, but it ultimately made the kingdom more powerful: Over the next few centuries, Tikal rose to yet greater heights, becoming a nearly unmatched dynasty before eventually declining around 900 A.D., along with the rest of the Maya world.

“There’s a kind of nostalgia about that time, when Teotihuacan was at the height of its power and taking increasing interest in the Maya,” Houston said. “It’s something exalted for them; they looked back on it almost wistfully. Even when they were in decline, they were still thinking about local politics in context of that contact with central Mexico.”

As they uncover more details about the contentious story of Teotihuacan and Tikal, Houston and Scherer said they’re both struck by how familiar it sounds: An all-powerful empire spots paradise and decides to plunder its riches.

“Everyone knows what happened to the Aztec civilization after the Spanish arrived,” Houston said. “Our findings show evidence that that’s a tale as old as time. These powers of central Mexico reached into the Maya world because they saw it as a place of extraordinary wealth, of special feathers from tropical birds, jade and chocolate. As far as Teotihuacan was concerned, it was the land of milk and honey.” 

Brick stamps in Roman Trier - building material for an ancient metropolis

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Trier flourished in the 4th century AD, when Roman emperors resided in the city. Monumental buildings such as the Imperial Baths and the Basilica of Constantine still bear witness to this era. The construction materials included fired bricks of various formats, used for walls, roofs, and heating systems. Approximately 4,000 stamped bricks from the Roman period are stored in the depots of Generaldirektion Kulturelles Erbe’s (GDKE) Rheinisches Landesmuseum Trier. Excavated since the early 20th century, this collection is among the largest from the northern Roman provinces. However, only a small portion has been studied to date. A team of researchers from the museum, Goethe University Frankfurt, and LEIZA now aims to systematically analyze them. Their goal is to gain insights into brick production as a key economic sector in the expansion of ancient Trier. “We assume that most of the stamped bricks date from Late Antiquity. This allows us to conduct a comprehensive analysis of how building ceramics were produced and used during this period,” says Dr. Thomas Schmidts, a private lecturer at Goethe University and conservator in the “Roman Archaeology” area of competence at LEIZA in Mainz. “Brick stamps are also key to understanding the economic and social structures of Late Antiquity,” he adds.

A key project focus is the spatial distribution of the bricks, which will help researchers trace the architectural development of Augusta Treverorum, the Roman Trier, which became known as Treveris in Late Antiquity. The study may reveal previously unknown state and public construction projects. Additionally, the researchers plan to quantify the efforts involved in late antique brick production, transportation, and construction. For the first time, archaeometric analyses will be conducted on Trier’s bricks, examining their material composition – specifically, the chemical composition of the clay – to determine the raw materials used. This will allow researchers to identify or confirm the existence of specific workshops.

“We are very pleased that our joint proposal was successful in the competitive DFG process. A broad methodological spectrum is not just typical of LEIZA, it also is increasingly important to gaining groundbreaking new insights,” emphasizes Prof. Dr. Alexandra W. Busch, General Director of LEIZA. “The project's findings will not only expand our knowledge of late antique building ceramics but also serve as a model study that integrates archaeological and archaeometric methodologies, helping us reconstruct Trier's historical development.”

Valencina de la Concepción, a large sustainable and egalitarian community at the height of the Copper Age

 

The Chalcolithic site of Valencina de la Concepción in Seville was permanently occupied for a thousand years, between 3300 and 2150 BCE, by a community of several thousand inhabitants who organised themselves in an egalitarian manner and reached a high level of economic sustainability based on cooperation and diversification.

This is the conclusion of a research team from the Universitat Autònoma de Barcelona (UAB) that has analysed 635 macrolithic tools recovered from the northern part of the site. The study, published in the Journal of Archaeological Science: Reports, rethinks previous interpretations, which considered Valencina a purely ritual or temporary meeting place, and reinforces its character as a complex and long-lasting settlement.

Researchers from the Autonomous University of Madrid, the University of Würzburg, Germany, and the German Archaeological Institute Madrid also participated in the study.

Valencina de la Concepción, with a total surface area of 450 hectares, is the most extensive site in Europe from the third millennium BCE. Despite a growing amount of information on the megalithic tombs of the necropolis and its concentric graves, little is known about another area, the settlement, which occupies ca. 200 hectares, and about the economic practices and social relations of the communities that frequented it. This study allowed researchers to understand the economic activities that were carried out throughout the occupation of the settlement and to re-evaluate its socio-economic organisation.

The artefacts analysed come from habitation and production units, such as huts, workshops and pits arranged in a circular formation, as well as from the material found inside the ditches. The analysis reflects an economy based on domestic and subsistence activities, with a great productive diversity, which included the processing of grains, plant fibres, animals, leather, metals, stone and other organic and inorganic materials.

The activities were maintained in a stable manner throughout the entire occupation of the Copper Age, between 5,300 and 5,150 years ago. “This indicates a permanent occupation of the settlement. The only observable changes between the three major phases of occupation could be due to the density of occupation of the area,” says Marina Eguíluz, predoctoral researcher at the Department of Prehistory of the UAB and first author of the study.

The great variety of work identified and the fact that no accumulation of surpluses has been detected suggests an organisational model based on a cooperative and diversified economy. This productive model, in combination with a basically egalitarian organisation, would have allowed the population, probably made up of several thousand inhabitants, to be economically sustainable over the course of a millennium.

“The observed continuity highlights the sustainability of the socioeconomic model present during the Copper Age, based on cooperativism and the lack of accumulation and centralisation, and differentiated from later models of productive intensification. This reinforces the proposal to define the most developed communities of the Copper Age in the south of the Iberian Peninsula as cooperative societies of abundance, a form of social organisation that deeply questions the traditional evolutionary models, based on hierarchical and power relations between bands, tribes, prefectures or states”, emphasises Roberto Risch, researcher of Prehistory at the UAB and coordinator of the study.

Artefacts until now associated with ritualism

Until now, the interpretation of Valencina de la Concepción has focused mainly on its necropolis and on specific parts of the settlement. Above all, the objects analysed were related to funerary practices, products of distant origin and the specialised craft production of pottery, metallurgy and copper. Stone materials were previously interpreted as evidence of ritualism due to their reduced and fragmented nature, and thus have received little attention as tools for subsistence and daily activities.

The artefacts analysed in this study were recovered from excavations carried out at Cerro de la Cabeza and the Pabellón Cubierto, included in the Valencina Nord project developed by the German Archaeological Institute of Madrid, the University of Würzburg and the Autonomous University of Madrid, with the collaboration of the UAB.

The study also shows that the tools were intensively used and the materials were reused. The materials were obtained from areas located within a maximum radius of 30 kilometres, which points to a local and regional management of lithic resources.

The methodology included the technological and functional analysis of the artefacts, as well as the macroscopic identification of raw materials, in order to understand aspects such as origin, production, use and discard, as well as radiocarbon dating and stratigraphic observations. In some of the items, samples of organic origin were collected, which have allowed a better understanding of their function.

The study carried out by UAB researchers opens the door to new comparative studies with other Chalcolithic sites focused on macrolithic artefacts.

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Journal

Journal of Archaeological Science

DOI

10.1016/j.jasrep.2025.105039 

Climate change and prehistoric human populations:

 

 Eastward shift of settlement areas at the end of the last ice age

Peer-Reviewed Publication

University of Cologne

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image: 

The map shows population shifts from the south-western to the north-eastern Europe during the last cold phase of the Ice Age.

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Credit: Isabell Schmidt, University of Cologne

A new study sheds light on how prehistoric hunter-gatherer populations in Europe coped with climate changes over 12,000 years ago. Led by scientists from the University of Cologne, a team of 25 prehistoric archaeologists from twenty European universities and research institutions revealed significant shifts in population size and density during key periods at the end of the last Ice Age, specifically during the Final Palaeolithic between 14,000 and 11,600 years ago. The study has been published in PLOS One under the title ‘Large scale and regional demographic responses to climatic changes in Europe during the Final Palaeolithic’.

The results reveal that the first establishment of a larger human population in north-eastern central Europe during the Final Palaeolithic was followed by a dramatic population decline during the last cold period (Greenland Stadial 1) of the Ice Age. This decline reduced the total population of Europe by half. However, the study found that some areas in central Europe show stability or even a slight increase in population size against the general trend. The team interprets this finding as evidence of human migration towards the east in response to worsening climate conditions.

By compiling a comprehensive database on archaeological sites from this period and using a cutting-edge geostatistical method called the Cologne Protocol, the researchers estimated population sizes and densities of prehistoric humans across different regions of Europe. The protocol provides a standardised procedure to estimate prehistoric demographic data, allowing for diachronic comparisons. The identified shifts in regional population sizes provide new insights into how early humans responded to the environmental challenges of their time.

The study focuses on two key periods: Greenland Interstadial 1d-a (GI-1d-a) and Greenland Stadial 1 (GS-1). During GI-1d-a, a warmer period of the Final Palaeolithic, humans continued to repopulate and expand into northern and north-eastern central Europe, making this region the centre of demographic dynamics in Europe for the first time in prehistory. Populations in south-western Europe, particularly in Spain and France, began to decline compared to population estimates for the preceding periods of the Upper Palaeolithic.

When the climate turned much colder during the subsequent GS-1, a climatic period known in the northern Hemisphere as the ‘Younger Dryas’, the total population of Europe decreases by half. But the new study shows that regional dynamics varied considerably: The estimates indicate an increase in population density in some areas of Europe (e.g. northern Italy, Poland and north-eastern Germany) as well as a general shift of populated areas from west to east. “These observations probably reflect the eastward movement of people in response to the very abrupt and pronounced climatic cooling during the Younger Dryas,” explains Dr Isabell Schmidt from the University of Cologne’s Department of Prehistoric Archaeology. “Humans during the Final Palaeolithic apparently responded by migrating to more favourable areas.”

The Cologne researchers are familiar with extreme population declines in Prehistory, such as during the late Gravettian (29,000 to 25,000 years ago), when cooler temperatures reduced populations in western and central Europe by up to two-thirds, leading to the extinction of regional populations.

Although demographic dynamics, particularly in these early phases of human prehistory, are still poorly understood, the new study adds to a growing body of evidence on how prehistoric humans responded to climate change, investigated at the University of Cologne in the framework of the Collaborative Research Centre 806 - Our Way to Europe, which was funded by the German Research Foundation (DFG) from 2009 to 2021. This work is currently being continued by the project HESCOR (Human and Earth System Coupling Research) at the University of Cologne, funded by the Ministry of Culture and Science of the State of North Rhine-Westphalia.

Aa long-isolated human lineage in the Central Sahara during the African humid period more than 7,000 years ago

 A new study reveals a long-isolated North African human lineage in the Central Sahara during the African humid period more than 7,000 years ago

Peer-Reviewed Publication

Max Planck Institute for Evolutionary Anthropology

The study provides critical new insights into the African Humid Period, a time between 14,500 and 5,000 years ago when the Sahara desert was a green savanna, rich in water bodies that facilitated human habitation and the spread of pastoralism. Later aridification turned this region into the world's largest desert. Due to the extreme aridity of the region today, DNA preservation is poor, making this pioneering ancient DNA study all the more significant.

Genomic analyses reveal that the ancestry of the Takarkori rock shelter individuals primarily derives from a North African lineage that diverged from sub-Saharan African populations at about the same time as the modern human lineages that spread outside of Africa around 50,000 years ago. The newly described lineage remained isolated, revealing deep genetic continuity in North Africa during the late Ice Age. While this lineage no longer exists in unadmixed form, this ancestry is still a central genetic component of present-day North African people, highlighting their unique heritage.

North Africa remained genetically isolated

Furthermore, these individuals share close genetic ties with 15,000-year-old foragers that lived during the Ice Age in Taforalt Cave, Morocco, associated with the Iberomaurusian lithic industry that predates the African Humid Period. Notably, both groups are equally distant from sub-Saharan African lineages, indicating that despite the Sahara's greening, gene flow between sub-Saharan and North African populations remained limited during the African Humid Period, contrary to previous suggestions.

The study also sheds light on Neandertal ancestry, showing that the Takarkori individuals have ten-fold less Neandertal DNA than people outside Africa, but more than contemporary sub-Saharan Africans. “Our findings suggest that while early North African populations were largely isolated, they received traces of Neandertal DNA due to gene flow from outside Africa,” said senior author Johannes Krause, director at the Max Planck Institute for Evolutionary Anthropology.

The spread of pastoralism in the Green Sahara

"Our research challenges previous assumptions about North African population history and highlights the existence of a deeply rooted and long-isolated genetic lineage," said first author Nada Salem from the Max Planck Institute for Evolutionary Anthropology. "This discovery reveals how pastoralism spread across the Green Sahara, likely through cultural exchange rather than large-scale migration."

"The study highlights the importance of ancient DNA for reconstructing human history in regions like Central Northern Africa, providing independent support to archaeological hypotheses," said senior author David Caramelli from the University of Florence. "By shedding light on the Sahara's deep past, we aim to increase our knowledge of human migrations, adaptations, and cultural evolution in this key region," added senior author Savino di Lernia from Sapienza University in Rome.

Children participated in cave paintings because they were perceived as mediators between the physical and spiritual worlds

 

 

Caption

Finger paintings made by children in Rouffignac Cave, 14,000 to 20,000 years ago.

 

Credit

Dr. Van Gelder

A team of Tel Aviv University researchers from the field of prehistoric archaeology has proposed an innovative hypothesis regarding an intriguing question: Why did ancient humans bring their young children to cave painting sites, deep underground — through dark, meandering, hazardous passages? The researchers explain: “Next to many cave paintings, there is clear evidence of the presence of children as young as two years old. So far, most hypotheses have focused on the educational aspect — learning the community's traditions and customs. However, we believe that children also played a unique cultural role in these caves: Young children were credited with special qualities in the spiritual world, enabling them to communicate with entities from the beyond – which were believed to be accessible from the depths of the cave.”

The study was conducted by Dr. Ella Assaf, Dr. Yafit Kedar, and Prof. Ran Barkai from the Jacob M. Alkow Department of Archaeology and Ancient Near Eastern Cultures at Tel Aviv University. The paper was published in the journal Arts from MDPI.

Dr. Assaf explains: “Cave art created by early humans is a fascinating phenomenon that intrigues many researchers. To date, around 400 caves containing cave art have been discovered, mainly in France and Spain, with the artwork dated between 40,000 and 12,000 years ago. There is solid evidence of children's participation in the art work — handprints and finger paintings made by children aged two to twelve. In addition, footprints and handprints of children have been found in some caves, alongside those of adults. This naturally raises the question: Why were the children there? Why were very young children taken on exhausting and hazardous journeys deep into the dark, meandering caves with low oxygen levels — crawling through crevices, descending shafts, and climbing rocks to reach their destination?

Dr. Kedar elaborates: “Despite extensive research on cave art, few studies have focused on the presence of children. The prevailing hypothesis is that their participation served an educational purpose — passing down knowledge, traditions, and customs to the next generation. In our study, we argue that children's involvement had an additional meaning: In fact, they played an important, unique role of their own — direct communication with entities residing in the depths of the earth and otherworldly realms. This study follows our previous works, in which we presented cave art works as expressions of cosmological approaches, with emphasis on relationships between humans and various entities.”

Dr. Assaf adds: “Based on extensive studies about children in indigenous societies, along with new insights into rituals performed in caves with cave paintings, a new understanding is emerging regarding the role of children in the creation of cave art. By integrating data from these research fields, we were able, for the first time, to propose a novel and original explanation for the inclusion of children in creating cave paintings:  The world of childhood differs from that of adults, and children possess a range of unique mental and cognitive traits. For this reason, indigenous cultures worldwide, throughout history and prehistory, have viewed children as 'active agents' — mediators between this world and the entities inhabiting the natural world, the underworld, and the cosmos as a whole. In this way, children made a vital contribution to their communities - hunter-gatherers who lived in nature and sought to maintain continuous, respectful relationships with various entities: animals and plants that served as food sources, stones used for toolmaking, ancestral spirits, and more.”

Prof. Barkai: “Many of these societies regarded caves as gateways to the underworld - where, through shamanic rituals, they could communicate with cosmic entities and inhabitants of the underworld, to resolve existential problems. In this context, young children were perceived as liminal beings — belonging to both the realm they had left just recently (before birth) and the world they currently inhabit. Thus, small children were considered particularly suited to bridging the gap between the worlds and delivering messages to non-human entities. In this paper, we connect these insights and propose that children joined adults on journeys into the depths of caves and participated in painting and rituals as part of their role in the community—as ideal mediators with entities from the beyond.”

Link to the article:

https://www.mdpi.com/2076-0752/14/2/27

New study challenges the story of humanity’s shift from prehistoric hunting to farming

 

A new study published in Proceedings of the National Academy of Sciences (PNAS) has turned traditional thinking on its head by highlighting the role of human interactions during the shift from hunting and gathering to farming - one of the biggest changes in human history - rather than earlier ideas that focused on environmental factors.

The transition from a hunter-gatherer foraging lifestyle, which humanity had followed for hundreds of thousands of years, to a settled farming one about 12,000 years ago has been widely discussed in popular books like Sapiens: A Brief History of Humankind by Yuval Noah Harari.

Researchers from the University of Bath, the Max Planck Institute for Evolutionary Anthropology in Germany, the University of Cambridge, UCL, and others have developed a new mathematical model that challenges the traditional view that this major transition was driven by external factors, such as climate warming, increased rainfall, or the development of fertile river valleys.

This research shows that humans were not just passive participants in this process; they played an active and crucial role in the transition. Factors such as varying population growth rates and mortality rates—driven by competition between hunter-gatherers and farmers—shaped the agricultural development of these regions.

Using a model originally designed to study predator-prey interactions, the researchers examined how early farmers and hunter-gatherers may have influenced each other. The results suggest that early farming societies spread through migration, competition, and cultural exchange, reshaping how hunter-gatherers lived and interacted with their environment.

Dr Javier Rivas, from the Department of Economics at the University of Bath, said:

"Our study provides a new perspective on prehistoric societies. By statistically fitting our theoretical predator-prey model to observed population dynamics inferred from radiocarbon dates, we explored how population growth shaped history and uncovered interesting patterns—such as how the spread of farming, whether by land or sea, influenced interactions between different groups. More importantly, our model also highlights the role of migration and cultural mixing in the rise of farming."

The team plans to build on this model by adding more details and testing it in larger regions.

Dr Javier Rivas added:

“We hope the methods we’ve developed will eventually become a standard tool for understanding how populations interacted in the past, offering fresh insight into other key moments in history, not just the shift to farming.”