Assertion Supported AI assessment confidence: 98% certainty 5/5 debate potential 2/5

Reich: A migration from Russia replaced 90% of Britain's population 4,500 years ago

David Reich · a16z Podcast | The Scientific Revolution of Ancient DNA · Jan 2, 2019 · at 15:51

Harvard geneticist David Reich explains how ancient DNA sequencing overturned historical paradigms by revealing massive demographic replacements across Europe starting 4,500 years ago.

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“Was that in this period, beginning about 4500 years ago, there was an absolutely huge population turnover, a massive migration from Russia into Central and Western Europe, where in Germany there was a minimum of 70% population replacement from people who came basically from Russia, and that these people kept sweeping west so that, for example, a hundred years later in Britain, they replaced at least 90% of the population, And the population that was just finishing building Stonehenge at this time, the last stones had just gone up, was at least 90% replaced by these newcomers, and these newcomers are the primary ancestors of people in northern Europe today.”

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