Lasinja: Echoes from Potočani

The Lasinja horizon in the western Balkans emerges in the late 5th to early 4th millennium BCE as a patchwork of farmsteads and small settlements. At Potočani (modern Croatia), archaeological data indicates a continuity of Neolithic farming traditions combined with new Chalcolithic traits — notably variations in pottery styles and early use of copper objects. This cultural mosaic likely reflects the slow transformation of local Early European Farmer (EEF) communities under regional influences rather than a dramatic population replacement.

Material remains show decorated ceramics, ground stone tools, and occasional worked copper; burial contexts are variable, and settlement traces suggest small-scale mixed farming. Limited evidence suggests interaction with neighboring groups across the Pannonian Basin and Adriatic shore, producing a distinct Lasinja regional expression. Radiocarbon-calibrated occupation dates for the assemblage fall between 4315 and 3900 BCE, situating Lasinja before the major steppe-derived migrations of the later third millennium BCE.

The archaeological picture is fragmentary: many sites are poorly preserved and the Lasinja label covers diverse local traditions. Archaeological data indicates a culturally dynamic period in which local innovation and regional exchange produced the lifeways captured in the material record.

The DNA sampling from the Croatia_C_Lasinja dataset (n = 37) permits a reasonably robust portrait of this community. Y-chromosome haplogroups are dominated by G (11 samples), a lineage frequently associated with Early European Farmers, while I (3) represents local hunter-gatherer-derived paternal lines and C (2) indicates rarer diversity. On the maternal side, haplogroups H (6), K (5), U (4), T2b (4), and T (4) form a mix typical of Neolithic and Chalcolithic Europe: H, K, and T lineages are commonly associated with farming groups; U often reflects hunter-gatherer ancestry.

Taken together with archaeological context, the genetic picture is consistent with a community primarily descended from Early European Farmer populations that incorporated local hunter-gatherer ancestry through admixture. Because these dates (4315–3900 BCE) predate the main steppe-related influx into Central Europe, widespread steppe-derived signatures are not expected; the observed haplogroup composition supports that expectation.

While 37 individuals provide meaningful insight, they derive from a limited geographic range (Potočani and immediate surroundings). Regional variation within the broader Lasinja sphere may exist, so conclusions should be viewed as regionally specific rather than universally representative. Ongoing sampling across multiple sites will clarify finer-scale population dynamics.