Translated by Daria Demerlii
This article is based on the landmark study Ancient DNA Connects Large-Scale Migration with the Spread of Slavs (Gretzinger et al., Nature, 2025). By weaving together historical records, archaeological finds, and cutting-edge DNA analysis, the authors have produced the most robust and comprehensive look at this field. Drawing on their results, this article addresses a question that has been the subject of intense debate for nearly two centuries: the origins of the Slavs and the reasons for their rapid expansion across Europe in the early Middle Ages. This research also challenges imperial narratives that claim a single,identical origin for both Ukrainians and Russians.
From a scholarly perspective, the term “Slavs” should be handled with care. It became especially prominent in the 19th and 20th centuries, when ideas of Slavic nationalism and Pan-Slavism emerged and were actively weaponized by the Russian Empire’s ideology. At the same time, Western neighbors often viewed Slavic populations through a lens of prejudice, dismissing them as culturally inferior; this external categorization, ironically , only strengthened a sense of shared Slavic identity. To get past these biases, the authors of the study rely on a vast array of evidence: written accounts, archaeology (notably the Prague–Korchak cultural horizon), linguistic reconstructions, and, most importantly, genetics. The backbone of this research lies in the analysis of 555 ancient genomes,allowing scientists to trace large-scale genetic shifts in Central Europe between the 6th and 8th centuries.
The Formation of the Slavic Genetic Core and the Drivers of Expansion
The study reveals that around 1000 BCE, a stable genetic “signature” emerged in a region spanning what is now southern Belarus and northern Ukraine. This area later became the heartland of the Slavic population. It developed through the mixing of local Baltic groups —distinguished by a strong hunter-gatherer and steppe ancestry —with farming communities from Central and Southeastern Europe. This “Slavic” gene pool created the demographic springboard for the large-scale expansion of the 6th to 8th centuries.
Crucially, unlike many other major population movements in European history, which were dominated by male warrior groups, Slavic migrations were not primarily military in nature. Men and women participated in roughly equal numbers. DNA analysis shows no significant gender imbalance in the genetic mix, pointing to family-based migration. Entire communities moved together, rather than bands of soldiers striking out on their own.
Timing and geography were also key. Following the collapse of the Roman Empire, large parts of Central Europe experienced significant depopulation. The Great Migrations of Goths, Vandals, and other Germanic tribes in the 4th and 5th centuries left behind depopulated lands with crumbling political structures. As Roman infrastructure fell into ruin, and local communities were absorbed into subsequent migration waves, a demographic vacuum opened up. Slavic communities from the Dnipro-Prypiat’ region possessed both the numbers and the social organization to step in, occupy, and cultivate these abandoned lands.
Scale and Character of the Migrations
The Slavic expansion of the 6th to 8th centuries stands as one of the largest migration processes in European history. Genetic evidence points to at least two main migration routes starting from the heartland between modern southern Belarus and northern Ukraine: one pushed north of the Carpathians toward present-day Poland and eastern Germany, while another headed south toward the Balkans and Pannonia. In some regions, the incoming population replaced locals by as much as 60 to 90 percent, underscoring the sheer scale of these movements. Archaeological and genetic data show these were not just isolated tribal shifts but the relocation of large, cohesive communities that built entirely new social landscapes.
A key distinction emerges when comparing earlier populations of Central Europe with these incoming Slavic groups. Late Antique communities were often fragmented, lacking clearly defined kinship structures. Slavic settlements, by contrast, were organized around large patrilocal kin groups: men remained in their native villages, while women married in from elsewhere. Multi-generational family trees found in cemeteries in eastern Germany back up this model. At the same time, they avoided close-kin marriages, suggesting social rules were in place to regulate alliances. This structure made communities more resilient, helped them manage land collectively, and provided a stable foundation for their language and culture to spread. Notably, these migrations lacked the hallmarks of a classic military conquest: Slavs settled largely abandoned or sparsely populated areas, laying the foundations for new communities rather than destroying existing ones.
Implications for the Present
The study of ancient Slavic genomes sheds light not only on the past but also on modern identities. In their discussion, the researchers demonstrate that the Slavic expansion of the 6th to 8th centuries left a deep mark on Europe’s genetic map. Today, Ukrainians, Belarusians, and Poles carry the highest proportion of that original “Slavic core” that formed between the Dnieper and Pripyat rivers during the Iron Age. In Germany, this legacy is particularly strong among the Sorbs (Lusatian Serbs), who retain over 80 percent of this heritage, while in the general population of Saxony it accounts for roughly 40 percent — a result of centuries of Germanization.
These findings challenge the idea that Slavs were a peripheral or “late-forming” people, a claim often found in ideologically driven narratives. Instead, they emerged as one of the key forces that shaped modern Europe, leaving traces not only in language and culture but also in the DNA of millions. At the same time, researchers emphasize that “Slavs” were never a single, uniform block. Rather, they were a network of interacting communities whose strength lay in their ability to adapt, integrate neighbors, and maintain a shared foundation. This balance explains both the speed of their expansion and the lasting power of their language and culture. Looking at it today, the Slavic past is best understood as a history of formation rather than domination—a perspective that is crucial for rethinking national identities across Central and Eastern Europe.
Conclusions
The results of this study undermine one of the most persistent temptations of the last century: the use of “Slavic unity” as a tool for imperial politics. The Russian Empire, followed by the Soviet Union, promoted Pan-Slavism as a façade for domination over neighboring peoples. Under the rhetoric of “protecting brotherly nations,” Moscow systematically appropriated their histories, erased local identities, and turned “Slavs” into a political label. Today’s Russian aggression against Ukraine is a direct continuation of this pattern, where claims of “historical unity” are used to justify occupation, violence, and destruction.
Scientific evidence points in a different direction. Slavs were neither “junior partners” nor appendages of an empire. Their expansion was family-based and largely peaceful, driven by communities that built new social structures rather than conquering others. They brought with them a model of organization based on kinship, mutual support, and integrative—not aggressive—interaction. These findings render imperial interpretations of the Slavic past untenable.
In a context where Ukrainians are being hunted from their land under fake “historical claims,” where Belarus is under de facto foreign control, and where anti-Ukrainian rhetoric pops up in political campaigns in Poland and the Czech Republic, it is worth remembering that the true Slavic legacy is about growth and adaptation, not subjugation. The idea of Pan-Slavism as an excuse for expansion has no legs to stand on. Modern science proves that Slavic unity did not come from a whip or centralized empire, but from living together and sharing the experience of building a home.
Cultural Affinity and the Politics of Inferiority
While Slavs developed as a network of separate communities, they always felt a bond – one rooted in related languages, similar social habits, and a shared history of migration. This closeness helped them adapt to new lands, making Slavic societies some of the most dynamic in medieval Europe. It remains visible today in traditions, folklore, mythology, and recognizable mental patterns across Slavic regions from the Balkans to the Baltic.
Yet this strength was also turned into a weakness. For centuries, Western Europe painted a picture of Slavs as “less civilized” or “backward,” imposing a sense of inferiority. From the Middle Ages to modern times, texts and political strategies often sought to exclude Slavs from “true Europe,” labelling them as secondary—and therefore easier for empires to control and divide. This “outsider” status even seeped into the Slavic soul, causing long-standing self-doubt and a constant fight for respect. The task today is different: to tear down this inherited framework and realize that Slavs were never on the sidelines. From the very beginning , they were the authors of their own history—capable of settling new lands without conquest, building resilient communities, and shaping Europe through peaceful means. Such an understanding offers a way to dismantle imposed imperial narratives and finally reclaim our own history.
