Excavations at the cemetery of Rákóczifalva, Hungary in 2006. (Hungarian National Museum, CC BY)
We sampled all available human remains from four fully excavated Avar-era cemeteries, including those at Rákóczifalva and Hajdúnánás in what is now Hungary. This resulted in a meticulous analysis of 424 individuals.
Around 300 of these individuals had close relatives buried in the same cemetery. This allowed us to reconstruct multiple extensive pedigrees spanning up to nine generations and 250 years.
Communities were organised around main fathers’ lines
Our research uncovered a sophisticated social framework. Our results suggest Avar society ran on a strict system of descent through the father’s line (patrilineal descent).
Following marriage, men typically remained within their paternal community, preserving the lineage continuity. In contrast, women played a crucial role in fostering social ties by marrying outside their family’s community. This practice, called female exogamy, underscores the pivotal contribution of women in maintaining social cohesion.
Additionally, our study identified instances where closely related male individuals, such as siblings or a father and son, had offspring with the same female partner. Such couplings are called “levirate unions”.
Despite these practices, we found no evidence of pairings between genetically related people. This suggests Avar societies meticulously preserved an ancestral memory.
These findings align with historical and anthropological evidence from societies of the Eurasian steppe.
Our study also revealed a transition in the main line of descent within Rákóczifalva, when one pedigree took over from another. This occurred together with archaeological and dietary shifts likely linked to political changes in the region.
The transition, though significant, cannot be detected from higher-level genetic studies. Our results show an apparent genetic continuity can mask the replacement of entire communities. This insight may have far-reaching implications for future archaeological and genetic research.
Future direction of research
Our study, carried out with researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany and at Eötvös Loránd University in Budapest, Hungary, is part of a larger project called HistoGenes funded by the European Research Council.
This project shows we can use ancient DNA to examine entire communities, rather than just individuals. We think there is a lot more we can learn.
Now we aim to deepen our understanding of ancestral Avar society by expanding our research over a wider geographical area within the Avar realm. This broader scope will allow us to investigate the origins of the women who married into the communities we have studied. We hope it will also illuminate the connections between communities in greater detail.
Additionally, we plan to study evidence of pathogens and disease among the individuals in this research, to understand more about their health and lives.
Another avenue of research is improving the dating of Avar sites. We are currently analysing multiple radiocarbon dates from individual burials to reveal a more precise timeline of Avar society. This detailed chronology will help us pinpoint significant cultural changes and interactions with neighbouring societies.
The authors would like to acknowledge the contributions to this work of Zsófia Rácz, Tivadar Vida, Johannes Krause and Zuzana Hofmanová.
Magdalena M.E. Bunbury, Postdoctoral Researcher, James Cook University and Guido Alberto Gnecchi-Ruscone, Postdoctoral Researcher, Department of Archaeogenetics, Max Planck Institute for Evolutionary Anthropology
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Source link : https://www.sciencealert.com/ancient-dna-unveils-family-secrets-of-a-lost-nomadic-culture-in-europe
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Publish date : 2024-04-27 07:00:00
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