It’s part of an archaic DNA project, because obviously, there’s no paperwork going back that far. It’s difficult to find genealogical documents much older than about 500 years. :^)
See the new topic about Black Plague genes.
I’ve found some family documentary evidence back to around 1520, but nothing beyond that. Yep, 500 years is the wall.
About 500 years has been the wall for documents on my family as well-where they lived in the Spanish Pyrenees, when they took off for the New World, arriving in Mexico, and in a couple centuries what is now Texas and NM-but nothing about whether they were always in that part of Spain before 500 years-other than old stories-no documents...