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This project is a meeting place for users who share the R-BY27800 Y-DNA haplogroup, which means they are related along their paternal lines. Users in this group may want to share their family trees with each other to find overlaps and merge duplicate profiles in order to join or expand the World Family Tree and discover new relatives.
- R-BY27800's paternal line was formed when it branched off from the ancestor R-FGC56507 and the rest of mankind around 50 BCE.
- There are 8 DNA tested descendants, and they specified that their earliest known origins are from Germany, Poland, Lithuania, and 1 other country with 2 from unknown countries.