[ABrit]

Shows Caucasians have 100K years plus of separate genetic development from other African sub groups, and 38K years separate genetic development from Mongoloids.

See also Science Magazine http://www.sciencemag.org/content/334/6052/94.abstract

[muawiyah]

At the same time the Chinese and Europeans each have a 5% identifiable background of the other ~ been a lot of movements back and forth, forth and back ~ much of it has to do with the human habit of swapping girls down the line ~ with adjacent tribes of course ~ friends!

The separation of the Sa'ami from the other Europeans is as long as 20,000 years, or as little as 7,000 years (until recent times of course).

There are other genetic isolates ~ one they're working on now are the folks in the Hebrides

[muawiyah]

Also, a correction ~ the people you identify as “Caucasion” are actually several different groups with known separations into various ice age refugia ~ one in the West (France/Spain), another on the Adriatic, another further East ~ and undoubtedly several others that’ve been all mixed up since the ice went away.