Re: Dates of Human Diaspora WAS: Re: PIE and Nostratic

Andreas Johansson wrote:

>Quoting Damien Perrotin <erwan.arskoul@...>:
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>>we wouldn't find any remains. Now they were unlikely to have been
>>numerous : hunting seas in an ice desert is a rather harsh way of life
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>But if they made over to the N American mainland before the Asiatics got there,
>one'd expect them to expand quickly south and west in the non-glaciated areas.
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To begin with it's just an hypothesis to explain the presence of
European gene among New England indians (another one would be
norse/breton/basque sailors - or not so puritan englishmen - having some
fun with indian women) but there seems to be some evidences pointing in
that direction. So why didn't they expand ? There are several
possibilities :
- there already were indigenous communities (there are slim evidence for
the presence of human societies as early as 50.000 BC)
- they did but disapeared for some reason (bad luck, competition with
other groups, merging with other tribes...) We know that such a fate
befell the Dorset culture which was reduced to a single settlement and
died out in 1902. The Kennewick Man points in that direction, but of
course it could also have been related to the Ainus or to some other
group which has disapeared without a trace in Eurasia (or the facial
reconstruction got it wrong)
- Bothe migrations happened during the glacian maximum  (around 20.000
BP), they collided and the asiatics won. The population in Northern
America was probably very low and neither group was fond of cave
painting, so there are little trace.

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