Paternal line · Y-DNA
The Atlantic Celtic line
R-L21
Where it is common today
The Atlantic Celtic branch of R1b — Ireland, Scotland, Wales, Brittany.
How old it is
This branch split from its parent about 4,500 years ago (between 4,200 and 4,800).
Every man who carries it today descends from one man who lived about 4,500 years ago (between 4,200 and 4,800).
From the big letter down to this branch
- R-L23
- R-L51
- R-L52
- R-PF6538
- R-L151
- R-P312
- R-S461
- R-L21
Every test reads your line to a different depth. One report says J1, another J-P58, another a code four steps further down — all of them are right, the longer one is simply more detailed. HealthOS reads as deep as your file allows.
Ancient people who carried it
203 ancient genomes in the Allen Ancient DNA Resource carry this line. The oldest is from Canada Farm, United Kingdom, around 2,380 BC.
- Kilteasheen, IrelandAD 1,00013 people
- Yarnton, United Kingdom2,100 BC – 290 BC9 people
- East Kent Access Road, United Kingdom1,470 BC – 280 BC9 people
- Winterbourne Kingston, United Kingdom60 BC – AD 1309 people
- Pocklington, United Kingdom350 BC – 130 BC8 people
- Amesbury Down, United Kingdom2,290 BC – 2,110 BC6 people
- Biddenham Loop, United Kingdom1,250 BC – 1,080 BC4 people
- Rowbarrow, United Kingdom1,480 BC – 400 BC4 people
- Worlebury, United Kingdom180 BC – 120 BC4 people
- Lechlade Memorial Hall/Skate Park, United Kingdom2,190 BC – 650 BC3 people
- Rathlin Island, Ireland1,950 BC – 1,630 BC3 people
- Broom Quarry, United Kingdom330 BC – 280 BC3 people
Find your own line
Upload the raw data file from 23andMe, AncestryDNA, MyHeritage or a whole-genome test. It is read on your device, and it is free.
Read my DNANo DNA test yet?
The HealthOS DNA Kit reads your maternal line, your paternal (Y) line if you have a Y chromosome, your ancestry across 15 regions and the ancient peoples you sit closest to. Spit in a tube at home; the lab is in Germany and the raw file is yours.
See the DNA kit