🍀 Where Celtic likely spread from

Ancient DNA points to a Late Bronze Age push out of Eastern-Central Europe. An ancestry linked to the Urnfield (Knovíz) horizon formed ~4,000–3,200 BP, then expanded west ~3,200–2,800 BP — reaching Britain by ~2,800 BP and Iberia by ~2,500 BP.

This same ancestry persists into Hallstatt/La Tène groups. Together, the pattern fits a Central European center for the spread of early Celtic languages, rather than a Beaker-era dispersal along the Atlantic.

Takeaway: The strongest genetic signal for early Celtic aligns with Urnfield → Hallstatt/La Tène movements from Eastern-Central Europe, then mixing locally in France, Britain, and Iberia.

Source: McColl et al., 2025. Tracing the Spread of Celtic Languages using Ancient Genomics.