Levänluhta jewellery links Finland to a European exchange network
Levänluhta jewellery links Finland to a European exchange network
The Levänluhta water burial site, dating back to the Iron Age (300-800 CE), is one of Finland's most famous archaeological sites. Nearly one hundred individuals, mainly women or children, were buried in a lake located at Isokyrö in SW Finland, during the Iron Age. Some of the deceased were accompanied by arm rings and necklaces made out of copper alloy, bronze or brass.
Style of jewellery domestic but material from abroad
"The origin of the metals used in these pieces of jewellery was determined on the basis of the objects' geochemical and lead isotope compositions. The jewellery of the deceased is stylistically typical Finnish Iron Age jewellery, making it probable that they were cast in local workshops. However, the metals used to make these objects are unlikely to be originally from the region, since copper ores had not yet been discovered here during the Iron Age," says Elisabeth Holmqvist-Sipilä, a postdoctoral researcher.
Up to now, archaeologists have assumed that copper used in the Iron Age came mainly from the copper ores discovered in southern Scandinavia. However, this interpretation has in recent years been called into question, since the copper found in archaeological metal discoveries in Sweden has also been determined to be imported.
In a study conducted in collaboration between archaeologists at the University of Helsinki and the Geological Survey of Finland, the origin of the bronze and brass jewellery found at Levänluhta was investigated by comparing their geochemical composition and lead isotope ratios to known copper ores in Finland, Sweden and elsewhere in Europe. The study was published in the Journal of Archaeological Science: Reports.
Copper tracks lead to southern Europe
"The results demonstrate that the copper used in the objects was not from Finland or the nearby regions; rather, it has travelled to Finland along extensive exchange networks, most likely from southern Europe," says Holmqvist-Sipilä.
Based on the lead isotope ratios, the copper in the objects has its origins in the copper ores found in Greece and Bulgaria. These regions produced a large quantity of copper in the Bronze and Iron Age, which spread around Europe as various object forms, distributed as presents, loot and merchandise. Metals were also recycled by melting old objects into raw material for new casts. It may be possible that metals that ended up in Finland during the Bronze Age were recycled in the Levänluhta region.
The findings of this project, funded by the Emil Aaltonen Foundation, demonstrate that products of the copper exchange network of continental Europe also reached Finland across the Baltic Sea, thus making it possible to link the region with the extensive copper exchange system known to have extended throughout Europe. The results also illustrate the temporally and technologically multi-layered nature of prehistoric metal artefacts: raw materials found their way here through a number of hands, most likely over a long period of time and across very great distances. In domestic artisan workshops, these metals of international origin were manufactured into pieces of jewellery in domestic Iron Age fashion, perhaps embodying the local identity and place of residence of the bearer.
Press release from the University of Helsinki
Drinking, feasting and dietary habits of Early Celts in Burgundy
Archaeology -- what the Celts drank
Research carried out by an international team led by scientists from Ludwig-Maximilians-Universitaet (LMU) in Munich and the University of Tübingen reveals aspects of the drinking and dietary habits of the Celts, who lived in Central Europe in the first millennium BCE.
The authors of the new study analyzed 99 ceramic drinking vessels, storage and transport jars recovered during excavations at Mont Lassois in Burgundy. This was the site of a fortified 'princely' settlement of the Early Celts. The finds included pottery and bronze vessels that had been imported from Greece around 500 BCE. "This was a period of rapid change, during which vessels made in Greece and Italy reached the region north of the Alps in large numbers for the first time. It has generally been assumed that this indicates that the Celts began to imitate the Mediterranean lifestyle, and that only the elite were in a position to drink Mediterranean wine during their banquets," says LMU archaeologist Philipp Stockhammer, who led the project. "Our analyses confirm that they indeed consumed imported wines, but they also drank local beer from the Greek drinking bowls. In other words, the Celts did not simply adopt foreign traditions in their original form. Instead, they used the imported vessels and products in their own ways and for their own purposes. Moreover, the consumption of imported wine was apparently not confined to the upper echelons of society. Craftsmen too had access to wine, and the evidence suggests that they possibly used it for cooking, while the elites quaffed it in the course of their drinking parties. The study shows that intercultural contact is a dynamic process and demonstrates how easy it is for unfamiliar vessels to serve new functions and acquire new meanings."
Chemical analysis of the food residues absorbed into the ancient pots now makes it possible to determine what people ate and drank thousands of years ago. The group of authors based at the University of Tübingen analyzed these chemical fingerprints in the material from Mont Lassois. "We identified characteristic components of olive oil and milk, imported wine and local alcoholic beverages, as well as traces of millet and beeswax," says Maxime Rageot, who performed the chemical analyses in Tübingen. "These findings show that - in addition to wine - beers brewed from millet and barley were consumed on festive or ritual occasions." His colleague Cynthianne Spiteri adds: "We are delighted to have definitively solved the old problem of whether or not the early Celts north of the Alps adopted Mediterranean drinking customs. - They did indeed, but they did so in a creative fashion!"
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The results of the study, which forms part of the BEFIM project (Meanings and Functions of Mediterranean Imports in Early Iron Age Central Europe), have just been published in the online journal PLOS ONE. The collaborative investigation was carried out by researchers from LMU Munich, the University of Tübingen, the Württemberg State Museum, the Landesamt für Denkmalpflege beim Regierungspräsidium Stuttgart, the University of Zürich and the University of Burgundy.
Press release from the Ludwig-Maximilians-Universität München
Early Celts in Burgundy appropriated Mediterranean products and feasting practices
Organic residue analysis of imported Mediterranean pottery fragments detects imported olive oil and wine as well as local beers
Early Celts in eastern France imported Mediterranean pottery, as well as olive oil and wine, and may have appropriated Mediterranean feasting practices, according to a study published June 19, 2019 in PLOS ONE, by Maxime Rageot from Ludwig-Maximilians-Universität München and the University of Tübingen, and colleagues.
Hundreds of fragments of imported Mediterranean pottery have been excavated from the Early Celtic hillfort site of Vix-Mont Lassois in Burgundy, France. This study is the first to investigate the impact of these Mediterranean imports and of Mediterranean feasting/consumption practices on Early Celtic culture (7th - 5th century BC), using molecular organic residue analysis techniques. The authors performed gas chromatography and GC-mass spectrometry analyses on organic residues extracted from 99 ceramic fragments found at Vix-Mont Lassois: some from 16 vessels imported from the Mediterranean and some from locally produced vessels from different contexts (elite, artisan, ritual, and military).
The results showed that the imported vessels were not only used for wine drinking as an appropriation of Mediterranean feasting practices, but also to drink local beers spiced with pine resins, in what appears to be an intercultural adaptation. Additional home-grown beverages were also found in local pottery, including what may have been millet-based beer, probably consumed only by low-status individuals, and barley-based beer and birch-derived beverages, which seemed to be consumed by high-status individuals. Local pine resins and plant oils were also identified. Beeswax was present in around 50% of the local pottery vessels, possibly indicating that mead was a popular fermented beverage or that the Early Celts liked to sweeten their beverages with honey.
The authors note that common foods such as wheat, barley and rye might have been present in the vessels but could not be detected by their analysis centuries later. Despite this limitation, this study sheds new light on the role of imported Mediterranean food and drink in helping shape Early Celtic feasting practices and demonstrates the potential of this type of molecular analysis also for other archaeological sites.
The authors add: "The Celts in the Early Iron Age did not just drink imported Greek wine from their imported Greek pottery. They also used the foreign vessels in their own way for drinking different kinds of local beer, as organic residue analysis of ca. 100 Early Iron Age local and Mediterranean drinking vessels from Mont Lassois (France) shows."
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Citation: Rageot M, Mötsch A, Schorer B, Bardel D, Winkler A, Sacchetti F, et al. (2019) New insights into Early Celtic consumption practices: Organic residue analyses of local and imported pottery from Vix-Mont Lassois. PLoS ONE 14(6): e0218001. https:/
Funding: MR research was funded by the Deutsches Bundesministerium für Bildung und Forschung (Federal Minstry of Education and Research). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Competing Interests: The authors have declared that no competing interests exist.
Press release from the Public Library of Science
Breakthrough in the discovery of DNA in ancient bones buried in water
Breakthrough in the discovery of DNA in ancient bones buried in water
During the Iron Age around 300 AD something extraordinary was initiated in Levänluhta area in Isokyrö, SW Finland. The deceased were buried in a lake, and this habit was continued for at least 400 years. When trenches were dug in the local fields in mid-1800's skulls and other human bones were surfacing. These bones had been preserved almost intact in the anoxic, ferrous water. Archaeologists, historians and locals have been wondering about these finds for over 150 years now.
In 2010, a multidisciplinary research group at the University of Helsinki decided to re-investigate the mystery of Levänluhta. The site, thought to be e.g. a sacrificial spring, is exceptional even in global scale and has yielded altogether c. 75 kg human bone material. The research group, led by docent Anna Wessman, had an ambitious aim: to find who the deceased buried in Levänluhta were, and why they were exceptionally buried under water so far from dwelling sites. Now, after several years of scientific work, the group reports their results in the most recent issue of Nature. The results are part of a more extensive international study shedding light on the colonization and population history of Siberia with DNA data from ancient - up to 31 000 years old - human bones.
"In our part, we wanted especially to find out the origins of the Iron Age remains found from Levänluhta," says the group leader Anna Wessman.
New results with DNA sequencing technology
This was investigated using cutting edge ancient DNA sequencing technology, which Department of Forensic Medicine is interested in due to the forensic casework performed at the department. Professor Antti Sajantila explains that the early phases of this project were demanding.
"Unability to repeat even our own results was utterly frustrating," Sajantila tells about the first experiments in the laboratory.
The methods were developing rapidly during the international co-operation, and ultimately the first Finnish results were shown to be accurate. Yet, it was surprising that the genomes of three Levänluhta individuals clearly resembled those of the modern Sámi people.
"We understood this quite early, but it took long to confirm these findings," tells docent Jukka Palo.
Locals or by-passers?
The results were suggesting that the Isokyrö region was inhabited by Sámi people in ancient times - according to carbon datings the bones belonged to individuals that had died 500 - 700 AD. This would be a concrete proof of Sámi in southern Finland in the past. But were the people locals, recent immigrants or haphazard by-passers? To find out, other techniques than DNA were needed. The solution lied in the enamel of teeth.
Curator Laura Arppe from the Finnish Museum of Natural History tells that strontium isotopes found in the enamel strongly suggest that the individuals grew up in the Levänluhta region.
The current genomes of the people in Finland carry both eastern Uralic and western Scandinavian components, and the genome of one the Levänluhta individuals examined had clear ties to present day Scandinavians. As a whole the replacement of the Sámi people in southern and central Finland reflects the replacement processes in Siberia, clarified in the present article. This has probably been a common feature in the Northern latitudes.
"The Levänluhta project demands further studies, not only to broaden the DNA data but also to understand the water burials as a phenomenon. The question "Why?" still lies unanswered," ponders the bone specialist, docent Kristiina Mannermaa.
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The project was funded primarily by the Emil Aaltonen Foundation and the participating researchers represented various disciplines and departments at the University of Helsinki. As authors of the current Nature publication were: Anna Wessman, Kristiina Mannermaa and Tarja Sundell (archaeology), Antti Sajantila, Jukka Palo and Mikko Putkonen (forensic medicine), and Laura Arppe (geosciences).
Press release from the University of Helsinki
Dramatic change in ancient nomad diets coincides with expansion of networks across Eurasia
Dramatic change in ancient nomad diets coincides with expansion of networks across Eurasia
A meta-analysis of dietary information recorded in the bones of ancient animals and humans recovered from sites scattered across the Eurasian steppe, from the Caucasus region to Mongolia, demonstrates that pastoralists spread domesticated crops across the steppe through their trade and social networks. Researchers from Kiel University sifted through previously published stable isotopic data and applied new quantitative analyses that calibrate human dietary intake against environmental inputs. The results have allowed them to better isolate the timing of the incorporation of agricultural products into the diets of pastoral nomads and, crucially, link burgeoning socio-political networks to this dietary transformation.
Through a big data project that explored over a thousand stable isotope data points, researchers were able to find evidence for an early transition to agriculture - based on dietary intake across Eurasia. "Our understanding of the pace of crop transmission across the Eurasian steppe has been surprisingly unclear due in part to a focus on the excavation of cemeteries, rather than settlements where people threw out their food," says Alicia Ventresca Miller, lead author, formerly of Kiel University and currently at the Max Planck Institute for the Science of Human History. "Even when settlement sites are excavated, the preservation of carbonized seed remains is often poor. This is what makes stable isotope analyses of human remains from this region so valuable - it provides direct insights into the dietary dynamics of ancient pastoralists who inhabited diverse environments."
Millet spreads across the Eurasian steppe
Millet, originally domesticated in China, appears to have been occasionally consumed at low levels by pastoralists inhabiting the far-flung regions of Siberia and southeastern Kazakhstan, possibly as early as the late third millennium. This initial uptake of millet coincided with the expansion of trans-regional networks across the steppe, when objects and ideas were first regularly exchanged over long-distances.
However, it was not until a thousand years later that millet became a regular feature of pastoralist diets. This timing coincides with the intensification of complex political structures at the transition to the Iron Age. Burgeoning socio-political confederations drove a marked increase in the exchange of costly prestige goods, which strengthened political networks - and facilitated the transfer of cultigens.
Wheat and Barley in the Trans-Urals
Despite taking part in these political networks, groups in the Trans-Urals invested in wheat and barley farming rather than millet. A dietary focus on wheat and barley may have been due to different farming techniques, greater water availability, or a higher value on these cultigens. "Our research suggests that cultigens were converted from a rare luxury during the Bronze Age to a medium demarcating elite participation in political networks during the Iron Age," states Cheryl Makarewicz of Kiel University.
Regional variation in millet consumption
While herding of livestock was widespread, not all regions adopted millet. In southwest Siberia, dietary intake was focused on pastoral animal products and locally available wild plants and fish. In contrast, the delayed adoption of millet by populations in Mongolia during the Late Iron Age coincides with the rise of the Xiongnu nomadic empire. "This is particularly interesting because it suggests that communities in Mongolia and Siberia opted out of the transition to millet agriculture, while continuing to engage with neighboring groups," explains Ventresca Miller.
This study shows the great potential of using the available isotope record to provide evidence for human dietary intake in areas where paleobotany is understudied. Further research should clarify the exact type of grains, for example broomcorn or foxtail millet, were fundamental to the shift in dietary intake and how networks of exchange linked different regions.
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Original publication:
Ventresca Miller and Makarewicz, Intensification in pastoralist cereal use coincides with the expansion of trans-regional networks in the Eurasian Steppe, Scientific Reports (2019). DOI: https:/
Press release from Kiel University / Christian-Albrechts-Universität zu Kiel
Ancient DNA from Roman and medieval grape seeds reveal ancestry of wine making
Ancient DNA from Roman and medieval grape seeds reveal ancestry of wine making
A grape variety still used in wine production in France today can be traced back 900 years to just one ancestral plant, scientists have discovered.
With the help of an extensive genetic database of modern grapevines, researchers were able to test and compare 28 archaeological seeds from French sites dating back to the Iron Age, Roman era, and medieval period.
Utilising similar ancient DNA methods used in tracing human ancestors, a team of researchers from the UK, Denmark, France, Spain, and Germany, drew genetic connections between seeds from different archaeological sites, as well as links to modern-day grape varieties.
It has long been suspected that some grape varieties grown today, particularly well-known types like Pinot Noir, have an exact genetic match with plants grown 2,000 years ago or more, but until now there has been no way of genetically testing an uninterrupted genetic lineage of that age.
Dr Nathan Wales, from the University of York, said: "From our sample of grape seeds we found 18 distinct genetic signatures, including one set of genetically identical seeds from two Roman sites separated by more than 600km, and dating back 2,000 years ago.
"These genetic links, which included a 'sister' relationship with varieties grown in the Alpine regions today, demonstrate winemakers' proficiencies across history in managing their vineyards with modern techniques, such as asexual reproduction through taking plant cuttings."
One archaeological grape seed excavated from a medieval site in Orléans in central France was genetically identical to Savagnin Blanc. This means the variety has grown for at least 900 years as cuttings from just one ancestral plant.
This variety (not to be confused with Sauvignon Blanc), is thought to have been popular for a number of centuries, but is not as commonly consumed as a wine today outside of its local region.
The grape can still be found growing in the Jura region of France, where it is used to produce expensive bottles of Vin Jaune, as well as in parts of Central Europe, where it often goes by the name Traminer.
Although this grape is not so well known today, 900 years of a genetically identical plant suggests that this wine was special - special enough for grape-growers to stick with it across centuries of changing political regimes and agricultural advancements.
Dr Jazmín Ramos-Madrigal, a postdoctoral researcher from the University of Copenhagen, said: "We suspect the majority of these archaeological seeds come from domesticated berries that were potentially used for winemaking based on their strong genetic links to wine grapevines.
"Berries from varieties used for wine are small, thick-skinned, full of seeds, and packed with sugar and other compounds such as acids, phenols, and aromas - great for making wine but not quite as good for eating straight from the vine. These ancient seeds did not have a strong genetic link to modern table grapes.
"Based on writings by the Roman author and naturalist, Pliny the Elder, and others, we know the Romans had advanced knowledge of winemaking and designated specific names to different grape varieties, but it has so far been impossible to link their Latin names to modern varieties.
"Now we have the opportunity to use genetics to know exactly what the Romans were growing in their vineyards."
Of the Roman seeds, the researchers could not find an identical genetic match with modern-day seeds, but they did find a very close relationships with two important grape families used to produce high quality wine.
These include the Syrah-Mondeuse Blanche family - Syrah is one of the most planted grapes in the world today - and the Mondeuse Blanche, which produces a high quality AOC (protected regional product) wine in Savoy, as well as the Pinot-Savagnin family - Pinot Noir being the "king of wine grapes".
Dr Wales said: "It is rather unconventional to trace an uninterrupted genetic lineage for hundreds of years into the past. Instead of exploring broad patterns in genetic ancestry, as in most ancient DNA projects, we had to think like forensics scientists and find a perfect match in the database.
"Large databases of genetic data from modern crops and optimized palaeogenomic methods have vastly improved our ability to analyse the history of this and other important fruits.
"For the wine industry today, these results could shed new light on the value of some grape varieties; even if we don't see them in popular use in wines today, they were once highly valued by past wine lovers and so are perhaps worth a closer look."
The researchers now hope to find more archaeological evidence that could send them further back in time and reveal more grape wine varieties.
More mysterious jars of the dead unearthed in Laos
More mysterious jars of the dead unearthed in Laos
NU and Uni of Melbourne Archaeologists have discovered 15 new sites in Laos containing more than one hundred 1000-year-old massive stone jars possibly used for the dead.
The jars of Laos are one of archaeology's enduring mysteries. Experts believe they were related to disposal of the dead, but nothing is known about the jars' original purpose and the people who brought them there.
The new finds show the distribution of the jars was more widespread than previously thought and could unlock the secrets surrounding their origin.
The sites, deep in remote and mountainous forest and containing 137 jars, were identified by ANU PhD student Nicholas Skopal with officials from the Lao government.
"These new sites have really only been visited by the occasional tiger hunter. Now we've rediscovered them, we're hoping to build a clear picture about this culture and how it disposed of its dead," said Mr Skopal.
ANU archaeologist Dr Dougald O'Reilly and Dr Louise Shewan from the University of Melbourne co-led the team that made the discovery. Dr O'Reilly said the new sites show the ancient burial practices involving the jars was "more widespread than previously thought".
"It's apparent the jars, some weighing several tonnes, were carved in quarries, and somehow transported, often several kilometres to their present locations," Dr O'Reilly.
"But why these sites were chosen as the final resting place for the jars is still a mystery. On top of that we've got no evidence of occupation in this region."
This year's excavations revealed beautifully carved discs which are most likely burial markers placed around the jars. Curiously, the decorated side of each disc has been buried face down.
Dr O'Reilly said the imagery on the discs found so far included concentric circles, pommels, human figures and creatures.
"Decorative carving is relatively rare at the jar sites and we don't know why some discs have animal imagery and others have geometric designs," Dr O'Reilly said.
Among typical iron-age artefacts found with the burials - decorative ceramics, glass beads, iron tools, discs worn in the ears and spindle whorls for cloth making - one particular find piqued the researchers' interest.
"Curiously we also found many miniature jars, which look just like the giant jars themselves but made of clay, so we'd love to know why these people represented the same jars in which they placed their dead, in miniature to be buried with their dead," Dr O'Reilly said.
"We've seen similar megalithic jars in Assam in India and in Sulawesi in Indonesia so we'd like to investigate possible connections in prehistory between these disparate regions."
Dr O'Reilly and his co-research Director on the project, Dr Louise Shewan, from the University of Melbourne would like to acknowledge Dr Thonglith Luangkoth of the Ministry of Information, Culture and Tourism without whose kind hospitality none of our research would be possible.
Press release from the Australian National University
Unique Iron Age shield gives insight into prehistoric technology
Unique Iron Age shield gives insight into prehistoric technology
A unique bark shield, thought to have been constructed with wooden laths during the Iron Age, has provided new insight into the construction and design of prehistoric weaponry.
The only one of its kind ever found in Europe, the shield was found south of Leicester on the Everards Meadows site, in what is believed to have been a livestock watering hole.
Following analysis of the construction of the shield by Michael Bamforth at the University of York, it became apparent that the shield had been carefully constructed with wooden laths to stiffen the structure, a wooden edging rim, and a woven boss to protect the wooden handle.
Although prior evidence has shown that prehistoric people used bark to make bowls and boxes, this is the first time researchers have seen the material used for a weapon of war.
Severe damage
The outside of the shield has been painted and scored in red chequerboard decoration. Radiocarbon dating has revealed that the shield was made between 395 and 255 BC.
The shield was severely damaged before being deposited in the ground, with some of the damage likely to have been caused by the pointed tips of spears. Further analysis is planned to help understand if this occurred in battle or as an act of ritual destruction.
Prehistoric technology
Michael Bamforth, from the University of York’s Department of Archaeology, said: “This truly astonishing and unparalleled artefact has given us an insight into prehistoric technology that we could never have guessed at.
“Although we know that bark has many uses, including making boxes and containers it doesn't survive well in the archaeological record. Initially we didn't think bark could be strong enough to use as a shield to defend against spears and swords and we wondered if it could be for ceremonial use.
"It was only through experimentation that we realised it could be tough enough to protect against blows from metal weapons. Although a bark shield is not as strong as one made from wood or metal, it would be much lighter allowing the user much more freedom of movement."
CT scanning
The shield was first discovered by archaeologists at the University of Leicester's Archaeoligical Services in 2015 at an Iron Age site within a farming landscape known to have been used and managed by Iron Age communities, with the Fosse Way Roman road running close by.
Many cutting-edge analytical techniques have been used to understand the construction of the object, including CT scanning and 3D printing.
Dr Rachel Crellin, Lecturer in later Prehistory at the University of Leicester, who assessed the evidence for impact damage, said: “The first time I saw the shield I was absolutely awed by it: the complex structure, the careful decorations, and the beautiful boss.
“I must admit I was initially sceptical about whether the shield would have functioned effectively, however the experimental work showed that the shield would have worked very effectively, and analysis of the surface of the object has identified evidence of use.”
Craft practices
The shield has now been conserved by York Archaeological Trust and will be deposited with the British Museum on behalf of Everards of Leicestershire, who funded and supported the project.
Dr Julia Farley, Curator of British and European Iron Age Collections at the British Museum, said: “This is an absolutely phenomenal object, one of the most marvelous, internationally important finds that I've encountered in my career.
“Bark and basketry objects were probably commonplace in ancient Britain, but they seldom survive, so to be able to study this shield is a great privilege. It holds a rich store of information about Iron Age society and craft practices.”
Press release from the University of York.
Ancient DNA suggests that some Northern Europeans got their languages from Siberia
Ancient DNA suggests that some Northern Europeans got their languages from Siberia
Most Europeans descend from a combination of European hunter-gatherers, Anatolian early farmers, and Steppe herders. But only European speakers of Uralic languages like Estonian and Finnish also have DNA from ancient Siberians. Now, with the help of ancient DNA samples, researchers reporting in Current Biology on May 9 suggest that these languages may have arrived from Siberia by the beginning of the Iron Age, about 2,500 years ago, rather than evolving in Northern Europe.
The findings highlight the way in which a combination of genetic, archaeological, and linguistic data can converge to tell the same story about what happened in particular areas in the distant past.
"Since the transition from Bronze to Iron Age coincides with the diversification and arrival time of Finnic languages in the Eastern Baltic proposed by linguists, it is plausible that the people who brought Siberian ancestry to the region also brought Uralic languages with them," says Lehti Saag of University of Tartu, Estonia.
Although researchers knew that the Uralic-speaking people share common Siberian ancestry, its arrival time in the Eastern Baltic had remained uncertain. To characterize the genetic ancestry of people from the as-yet-unstudied cultural layers, Saag along with Kristiina Tambets and colleagues extracted DNA from the tooth roots of 56 individuals, 33 of which yielded enough DNA to include in the analysis.
"Studying ancient DNA makes it possible to pinpoint the moment in time when the genetic components that we see in modern populations reached the area since, instead of predicting past events based on modern genomes, we are analyzing the DNA of individuals who actually lived in a particular time in the past," Saag explains.
Their data suggest that the Siberian ancestry reached the coasts of the Baltic Sea no later than the mid-first millennium BC--around the time of the diversification of west Uralic/Finnic languages. It also indicates an influx of people from regions with strong Western hunter-gatherer characteristics in the Bronze Age, including many traits we now associate with modern Northern Europeans, like pale skins, blue eyes, and lactose tolerance.
"The Bronze Age individuals from the Eastern Baltic show an increase in hunter-gatherer ancestry compared to Late Neolithic people and also in the frequency of light eyes, hair, and skin and lactose tolerance," Tambets says, noting that those characteristics continue amongst present-day Northern Europeans.
The researchers are now expanding their study to better understand the Iron Age migration processes in Europe. They say they will also "move forward in time and focus on the genetic structure of the medieval time period."
An exhibition presents 10 years of Basel excavations in Francavilla Marittima
Cultures in Contact - An exhibition presents 10 years of Basel excavations in Francavilla Marittima
More than 30 ancient graves have been uncovered by archaeologists and students of the University of Basel as part of an educational excavation in southern Italy. The graves date from a time when the first Greeks and Orientals arrived in the region about 3000 years ago and document the cultural exchange with the local population. The results and methods of the research project will now be presented in an exhibition at the University Library of Basel, which opens on 12 April 2019.
Even in ancient times, the south of Italy was a hub for migration. The Iron Age settlement of Francavilla Marittima (ca. 800-700 BC) played a key role as a contact point between the local population and traders and colonists from Greece and the Near East.
Since 2009, the Basel project has been researching the burial site of this settlement and has uncovered 33 graves of women, men, and children to date. Grave goods such as vessels, figurines, jewelry, and weapons offer a wealth of information about the lifestyle of the local elite and their reaction to the arrival of colonists.
Productive cultural exchange
“Initially, we suspected strong differences between the locals and the colonists,” states the archaeologist Prof. Martin Guggisberg, who has been leading the excavation. “After 10 years of research, however, we see the relationship in a new light: not confrontation and opposition determined the picture, but dynamic processes of cultural transformation that led to the gradual establishment of a new, Greek order from around 700 BC onwards.
The research team discovered evidence for the intertwining of the traditional and the new in the tomb of a local ruler. Among his grave goods were different sorts of vessels and bowls that point to Greece and prove the adoption of new drinking and cultural practices. By contrast, his inhumation in fetal position underlines his adherence to the local tradition.
Iron swords buried in plaster coat
Of special importance is also the discovery of three iron swords. They belong to the oldest documents of this new weapon type in Italy and document the penetration of new fighting techniques from the East. Since the swords were very badly preserved, the research team first used a plaster coat and then digital analysis methods to reconstruct them graphically and in 3D print.
From excavation to exhibition
Over the years, more than 70 students participated in the teaching excavation in Francavilla Marittima, learning how to use pickaxes, trowels, and brushes as well as the latest surveying technology and digital documentation methods. The students conceived the exhibition “Cultures in Contact” under the guidance of Atelier Degen+Meili, an exhibition consultancy based in Basel. The result of the collaboration is a presentation that not only makes visible the cultural contacts at the time but also presents the working methods of the project.
Prof. Dr. Martin Guggisberg from the Department of Archaeology at the University of Basel will introduce the exhibition on 12 April 2019 at 5.30 pm. Further speakers will be Prof. Dr. Thomas Grob, Vice President of the University of Basel, Dr. Pietro Maria Paolucci, Italian Consul in Basel, as well as Dr. Franco Bettarini, Mayor of Francavilla Marittima.
Francavilla Marittima: Basel excavation and exhibition
Cultures in Contact – 10 years of Basel excavations in Francavilla Marittima, University Library Basel, Schönbeinstrasse 18-20 (1st floor), Basel. The exhibition runs until 9 June 2019. Opening hours: Monday to Friday, 8 am – 10.30 pm, Saturday 9 am – 7 pm, free admission. On 15 May 2019, 6.15 p.m., there will be a theme evening with Prof. Martin Guggisberg. Public guided tours: 16 April and 15 May 2019, at 6.15 pm.
The Francavilla Marittima project is the result of a successful cultural collaboration between Switzerland and Italy. It has received support from various partner institutions, including the Archaeological Soil Research of the Canton of Basel-Stadt, the Department of Prehistoric and Scientific Archaeology of the University of Basel, and the Institute of Forensic Medicine of the University of Bern, the Max Planck Institute for Human History, Jena, the Museo Nazionale Archeologico della Sibaritide, the Soprintendenza Archeologia, Belle Arti e Paesaggio per le Province di Catanzaro, Cosenza e Crotone, the Municipality of Francavilla Marittima and the Ministero per i Beni e le Attività Culturali of the Italian State. The excavations are supported by the Swiss National Science Foundation, the Voluntary Academic Society of Basel, the Max Geldner Foundation and the University of Basel.
Press release from the University of Basel/Universität Basel
Unique diversity of the genetic history of the Iberian Peninsula revealed by dual studies
Unique diversity of the genetic history of the Iberian Peninsula revealed by dual studies
Two studies, one looking at Iberian hunter-gatherers between 13,000 and 6,000 years ago and another looking at Iberian populations over the last 8000 years, add new resolution to our understanding of the history and prehistory of the region
An international team of researchers have analyzed ancient DNA from almost 300 individuals from the Iberian Peninsula, spanning more than 12,000 years, in two studies published today (14/03/2019) in Current Biology and Science. The first study looked at hunter-gatherers and early farmers living in Iberia between 13,000 and 6000 years ago. The second looked at individuals from the region during all time periods over the last 8000 years. Together, the two papers greatly increase our knowledge about the population history of this unique region.
The Iberian Peninsula has long been thought of as an outlier in the population history of Europe, due to its unique climate and position on the far western edge of the continent. During the last Ice Age, Iberia remained relatively warm, allowing plants and animals - and possibly people - who were forced to retreat from much of the rest of Europe to continue living there. Similarly, over the last 8000 years, Iberia's geographic location, rugged terrain, position on the Mediterranean coast and proximity to North Africa made it unique in comparison to other parts of Europe in its interactions with other regions. Two new studies, published concurrently in Current Biology and Science, analyze a total of almost 300 individuals who lived from about 13,000 to 400 years ago to give unprecedented clarity on the unique population history of the Iberian Peninsula.
Iberian hunter-gatherers show two ancient Paleolithic lineages
For the paper in Current Biology, led by researchers at the Max Planck Institute for the Science of Human History, researchers analyzed 11 hunter-gatherers and Neolithic individuals from Iberia. The oldest newly analyzed individuals are approximately 12,000 years old and were recovered from Balma Guilanyà in Spain.
Earlier evidence had shown that, after the end of the last Ice Age, western and central Europe were dominated by hunter-gatherers with ancestry associated with an approximately 14,000-year-old individual from Villabruna, Italy. Italy is thought to have been a potential refuge for humans during the last Ice Age, like Iberia. The Villabruna-related ancestry largely replaced earlier ancestry in western and central Europe related to 19,000-15,000-year-old individuals associated with what is known as the Magdalenian cultural complex.
Interestingly, the findings of the current study show that both lineages were present in Iberian individuals dating back as far as 19,000 years ago. "We can confirm the survival of an additional Paleolithic lineage that dates back to the Late Ice Age in Iberia," says Wolfgang Haak of the Max Planck Institute for the Science of Human History, senior author of the study. "This confirms the role of the Iberian Peninsula as a refuge during the Last Glacial Maximum, not only for fauna and flora but also for human populations."
This suggests that, far from being replaced by Villabruna-related individuals after the last Ice Age, hunter-gatherers in Iberia in fact already had ancestry from Magdalenian- and Villabruna-related sources. The discovery suggests an early connection between two potential refugia, resulting in a genetic ancestry that survived in later Iberian hunter-gatherers.
"The hunter-gatherers from the Iberian Peninsula carry a mix of two older types of genetic ancestry: one that dates back to the Last Glacial Maximum and was once maximized in individuals attributed to Magdalenian culture and another one that is found everywhere in western and central Europe and had replaced the Magdalenian lineage during the Early Holocene everywhere except the Iberian Peninsula," explains Vanessa Villalba-Mouco of the Max Planck Institute for the Science of Human History, first author of the study.
The researchers hope that ongoing efforts to decipher the genetic structure of late hunter-gatherer groups across Europe will help to even better understand Europe's past and, in particular, the assimilation of a Neolithic way of life brought about by expanding farmers from the Near East during the Holocene.
Ancient DNA from individuals spanning the last 8000 years helps clarify the history and prehistory of the Iberian Peninsula
The paper published in Science focuses on slightly later time periods, and traces the population history of Iberia over the last 8000 years by analyzing ancient DNA from a huge number of individuals. The study, led by Harvard Medical School and the Broad Institute and including Haak and Villalba-Mouco, analyzed 271 ancient Iberians from the Mesolithic, Neolithic, Copper Age, Bronze Age, Iron Age and historical periods. The large number of individuals allowed the team to make more detailed inferences about each time period than previously possible.
The researchers found that during the transition to a sedentary farming life-style, hunter-gatherers in Iberia contributed subtly to the genetic make-up of newly arriving farmers from the Near East. "We can see that there must have been local mixture as the Iberian farmers also carry this dual signature of hunter-gatherer ancestry unique to Iberia," explains Villalba-Mouco.
Between about 2500-2000 BC, the researchers observed the replacement of 40% of Iberia's ancestry and nearly 100% of its Y-chromosomes by people with ancestry from the Pontic Steppe, a region in what is today Ukraine and Russia. Interestingly, the findings show that in the Iron Age, "Steppe ancestry" had spread not only into Indo-European-speaking regions of Iberia but also into non-Indo-European-speaking ones, such as the region inhabited by the Basque. The researchers' analysis suggests that present-day Basques most closely resemble a typical Iberian Iron Age population, including the influx of "Steppe ancestry," but that they were not affected by subsequent genetic contributions that affected the rest of Iberia. This suggests that Basque speakers were equally affected genetically as other groups by the arrival of Steppe populations, but retained their language in any case. It was only after that time that they became relatively isolated genetically from the rest of the Iberian Peninsula.
Additionally, the researchers looked at historical periods, including times when Greek and later Roman settlements existed in Iberia. The researchers found that beginning at least in the Roman period, the ancestry of the peninsula was transformed by gene flow from North Africa and the eastern Mediterranean. They found that Greek and Roman settlements tended to be quite multiethnic, with individuals from the central and eastern Mediterranean and North Africa as well as locals, and that these interactions had lasting demographic as well as cultural impacts.
"Beyond the specific insights about Iberia, this study serves as a model for how a high-resolution ancient DNA transect continuing into historical periods can be used to provide a detailed description of the formation of present-day populations," explains Haak. "We hope that future use of similar strategies will provide equally valuable insights in other regions of the world."
Press release from the Max Planck Institute for the Science of Human History/Max-Planck-Institut für Menschheitsgeschichte (MPI-SHH)
