that's . . . somewhat worrisome, when taken at face value.
I've not checked the whole video yet . . . do they mention what percentage of the US population at large is descended from him? because if this is one of those "Ghengis Khan porked and murdered his way across three continents and is now directly related to a sizable percentage of the human population" type things, then it's not so much "news" as it is trivia.
if it's a bit more exclusive of a bloodline, though? well, I guess the US has never been even close to following it's own ideals.
The research was doe over months by a 12 year old girl, it isn't a wide-ranging study. However, Genhis Khan was known for rape and pillage, and John Lackland was not.
Edit: Also, you are referring to DNA studies, and the 12 year old was following genealogical records. (I.e., the father on paper might not necessarily be the father in fact, although the mother would be easily determined. See Daniel Boone for such a reference. He was gone several years and declared her a miracle on his return to greet a new child.)
Wonder if he's related to Yang the Nauseating? rofl
Rattking, mind your manners.
Pardon? Yang the Nauseating was an alias used by one of my favorite filkers and authors, the late Robert Asprin.. After 1000 years, it's quite possible they are related to each other, and Yang was not either of their real names.