Monday, December 22, 2014

linguistic sharing

Monday, September 15, 2014

Black Sea Flood: Deluge & Diaspora?

From Ian Wilson's book: Before the Flood
(Click on pic to enlarge)

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Update: Map from Bernard's blog on IE origins, compare to post-glacial marine incursion of 7.7ka Black Sea Oasis "Deluge" above:

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A new study, looking at the sex-specifically inherited X chromosome of prehistoric human remains, shows that hardly any women took part in the extensive migration from the Pontic-Caspian Steppe approximately 5,000 years ago. The great migration that brought farming practices to Europe 4,000 years earlier, on the other hand, consisted of both women and men. The difference in sex bias suggests that different social and cultural processes drove the two migrations.

Genetic data show mainly men migrated from the Pontic steppe to Europe 5,000 years ago
Male (blue) and female (red) contribution during the early Neolithic and later 
Neolithic/Bronze Age migrations [Credit: Mattias Jakobsson]
Genetic data suggest that modern European ancestry represents a mosaic of ancestral contributions from multiple waves of prehistoric migration events. Recent studies of genomic variation in prehistoric human remains have demonstrated that two mass migration events are particularly important to understanding European prehistory: the Neolithic spread of agriculture from Anatolia starting around 9,000 years ago, and migration from the Pontic-Caspian Steppe around 5,000 years ago. These migrations are coincident with large social, cultural, and linguistic changes, and each has been inferred to have replaced more than half of the contemporaneous gene pool of resident Central Europeans.