Herman Rubin
6/13/2014 7:39:00 PM
On 2014-06-13, news <news@fx24.iad.highwinds-media.com> wrote:
> On Thu, 12 Jun 2014 20:08:24 +0000 (UTC), Herman Rubin
><hrubin@skew.stat.purdue.edu> wrote:
>>On 2014-06-11, news <news@fx27.iad.highwinds-media.com> wrote:
>>> On Tue, 10 Jun 2014 21:56:55 +0000 (UTC), Fred Goldstein
>>><fg_es@ionaryQRM.invalid> wrote:
>>>>On 6/10/2014 12:49 PM, Yisroel Markov wrote:
>>>>> On Tue, 10 Jun 2014 13:28:22 +0000 (UTC), "news"
>>>>> <news@fx05.iad.highwinds-media.com> said:
>>>>> [snip]
>>>>The Yoruba are a large ethnic group from what is now southern Nigeria.
>>>>They roll up into the larger Bantu family, which dominates western and
>>>>central sub-Saharan Africa. Ethiopians can be classified as Habesha, or
>>>>(linguistically) as southern Semites, perhaps related to some of the
>>>>other East African ethnicities, but totally distinct from the Yoruba and
>>>>other Bantu.
>>>>While Blumenbach arbitrarily decided, on the basis of his skull
>>>>collection, that those were both "negroid" peoples, thus providing a
>>>>pseudo-scientific basis for racism, even he admitted that dark skin was
>>>>simply a characteristic of living in very sunny places, not the basis of
>>>>his classification.
>>> How would that explain the bleckness of those Africans living at high
>>> altitudes in cool climates, e.g. Kenyans?
>>It is not temperature, but sunlight, which is even higher in
>>intensity at high altitudes.
> But intense sunlight is not limited to Africa. The Andes have higher
> altitudes than anywhere in Africa. With people living up there.
From the results on archaeology, mankind started out in Africa, and
was black. Those who migrated out of Africa, the last big migration
being probably about 50,000 years ago, lost the black coloration to
variable amounts, depending where they lived, and also there were
genetic variations. The Amerinds seem to have come over less than
15,000 years ago from people who had a moderate amount of melanin
in their skins. While some may have come over earlier, it seems
that the great majority of the ancestry of the Amerinds is due to
a migration from northeast Asia over a short periods about 14,000
years ago, and this is why they are relatively homogeneous.
--
This address is for information only. I do not claim that these views
are those of the Statistics Department or of Purdue University.
Herman Rubin, Department of Statistics, Purdue University
hrubin@stat.purdue.edu Phone: (765)494-6054 FAX: (765)494-0558