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This project is for people who have tested and been assigned the paternal haplogroup R1b1a2a1a2c (L21) and also for people who are believed to have been this paternal haplogroup based on tests done on descendants.
Formerly:
(to be added)
Myres et al. report this group is most common in England and Ireland (25-50% of the whole male population).
To participate in this project, join or follow the project, then 'add your oldest known ancestor who belonged to this haplogroup. The profile must be set to public in order to add it.