Comments by "" (@TheDavidlloydjones) on "How horse nomads took over Europe 5000 years ago – David Reich" video.
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The Mongol Spot is a pink spot on the outsides of the buttocks; it fades around a person's mid-thirties -- the normal age of death, way back when. It is said, I don't know with how much authority, if any, to be a genetic inheritance from some Mongol horseman. Maybe even more than one.
In France it is said to be found as far as Langue d'Oïl but not Langue d'Oc , but the all the people have been mixing it up since the railways, military conscriptions, and the occasional revolution recently..
The Japanese are of course One People, genetically unpolluted, from Hokkaido to Okinawa, so it is ridiculous to imagine that the Mongol Spot was found everywhere up to that wall at the end of the Odakyu Line, an old Empress's property line, so naturally nothing at all to do with breeding, uh, genetics.
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