Haplogroup R1a

Y-DNA (paternal line) · one of the R lineages

Steppe-associated; spread with the Bronze-Age Corded Ware/Steppe expansions; common in Eastern Europe and South Asia. [isogg][yfull]

Estimated age of the lineage: ~8,600 years (TMRCA). Explore the full deep subtree (R-M198) at YFull → — the live, SNP-level tree where you can drill down to your own terminal subclade. [yfull]

In the ancient British record

Frequency of R1a among ancient male samples from Britain & Ireland, by period — from our aggregation of the CC0 Allen Ancient DNA Resource. See the full chart.

Early Medieval 5%
Medieval+ 2%

For a fuller account, search “Haplogroup R1a” in a reference such as Wikipedia or ISOGG.

Remember: a haplogroup is a deep, broad lineage shared by many people — not an ethnicity, a nationality or a clan. See what DNA can and can’t tell you.

Sources

[isogg] International Society of Genetic Genealogy (ISOGG), Y-DNA Haplogroup Tree. Reference — cite for haplogroup nomenclature only (not frequencies) · link
[yfull] YFull YTree (github.com/YFullTeam/YTree) — a phylogenetic Y-chromosome tree with age estimates. CC BY 4.0 (attribution required) · link