Saturday, June 17, 2017

"The thorniest, most fought-over question in Indian history is slowly but surely getting answered: did Indo-European language speakers, who called themselves Aryans, stream into India sometime around 2,000 BC – 1,500 BC when the Indus Valley civilisation came to an end, bringing with them Sanskrit and a distinctive set of cultural practices? Genetic research based on an avalanche of new DNA evidence is making scientists around the world converge on an unambiguous answer: yes, they did.
So far, we have only looked at the migrations of Indo-European language speakers because that has been the most debated and argued about historical event. But one must not lose the bigger picture: R1a lineages form only about 17.5 % of Indian male lineage, and an even smaller percentage of the female lineage. The vast majority of Indians owe their ancestry mostly to people from other migrations, starting with the original Out of Africa migrations of around 55,000 to 65,000 years ago, or the farming-related migrations from West Asia that probably occurred in multiple waves after 10,000 B.C., or the migrations of Austro-Asiatic speakers such as the Munda from East Asia the dating of which is yet to determined, and the migrations of Tibeto-Burman speakers such as the Garo again from east Asia, the dating of which is also yet to be determined."
From How genetics is settling the Aryan migration debate by Tony Joseph. 
P.S. I think that the origins of caste may also be clearer in a few years. Check the second paper (same as above) In this post by Razib Khan.

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