Re: When did human races split from one another?


lauriecurtispj@xxxxxxxxxxx wrote:
Does anyone know any up to date estimates on when humans split into
separate races? Obviously all humans started out as one race, so at
what dates in history did the human population split into the major
geographic races such as negroids, caucasoids, South East Asian &
pacific islander, north east asian? What was the chronological
sequence in which those major races split from one another and what
were the dates?

Here's an exact answer to your question:

http://www.halexandria.org/dward725.htm
Masatoshi Nei (of the University of Texas at Austin) has data
indicating that "Negroids and the Caucasoid-Mongoloid group diverged
from each other 110,000 years ago, whereas Caucasoid and Mongoloid
groups didn't separate from each other until about 40,000 years ago.
Cavalli-Sforza, a linguistic, showed that "linguistic families shared
a striking correspondence with genetic clusters -- in effect, languages
evolved along with genes." Wow! Even further out on the limb, a
psychologist from Ontario, Phillippe Ruston, "reported that if races
had begun to diverge 110,000 years ago, with blacks emerging first,
this indicated, along with other ordered differences among the races
that he had noted, that blacks were the least intelligent of the races
and had the highest sex drive. Whites, who he said emerged second, had
more intelligence but less of a sex drive, while Orientals were of the
highest intelligence and concomitantly the lowest sex drive." This
actually correlates on the intelligence issue with The Bell Curve book,
and the flap it caused in 1994. It may also be garbage.
Critical to Berkeley's claim of Eve living c. 200,000 (or within the
range from 142,500 to 290,000) years ago is the RATE of the molecular
clock. Berkeley (Becky, et al) assumed a constant 2 to 4 percent rate
of mutation. Brown had, on the other hand, assumed 1 to 2 percent per
million years (implying a set of revised dates of 285,000 to 570,000).
The key is that the slower the rate, the further back in time was any
"Eve". Masatoshi Nei came up with 1.4%, i.e. 400,000 years ago.
Two others at the University of Texas claimed that "The molecular
clock runs more slowly in man than in apes and monkeys. There is no
case in which the human lineage has evolved faster. This is true for
both nuclear and mitochondrial sequences. When all the nuclear
sequences are considered together, the rates in the orangutan, gorilla
and chimpanzee lineages are, respectively, 1.3, 1.9 and 1.6 times
faster than the rate of human lineage." This comparison may be very
important.

.

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