Friday, June 06, 2003

(untitled)

by visaeril @ 01:43 [edit] [link]

"Three deep lineages were identified in the Africans. These are called L1, L2, and L3. All other humans in the world were found to belong to one sub-branch of L3. It was estimated that L3 humans crossed into Asia between 100 000 and 50 000 years ago, reached Australia 80 000 to 40 000 years ago, New Guinea 60 000 to 30 000, and Europe (then largely under glaciation so less habitable) 50 000 to 25 000. As these numbers have such uncertainty I've rounded them a bit more to be memorable. Later studies have refined some of these: Asia 75 000 to 55 000, Europe 50 000 to 40 000. The earliest crossing into America over the Bering Land Bridge is problematic, but was more recent than these. "

INDEED.

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