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Originally Posted by
Duarte
It seems that ancestral populations that had the ancient mitochondrial clades A, B, C and D whose descendants reached the America and, on the new continent, gave rise to many indigenous subclades, also had descendants that reached western Eurasia over time and gave rise to many European subclades.
There are only 2 East Asian mtDNA haplogroups and they are no doubt traces of Mongol and other more recent invasions. Some Tartar groups fled to Poland in late Medieval times after Russia got the upper hand.
https://en.wikipedia.org/wiki/Lipka_...4th%20century.