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To: Cowboy Bob

There is no way anyone can convince me that all the worlds civilizations came from one area of Africa.


5 posted on 02/15/2018 9:28:06 PM PST by eastforker (All in, I'm all Trump,what you got!)
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To: eastforker
It's PC nonsense for giving Africa credit for something
40 posted on 02/15/2018 10:38:53 PM PST by libh8er
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To: eastforker

Re: “There is no way anyone can convince me that all the worlds civilizations came from one area of Africa.”

As I understand the hypothesis, almost 100% of human beings currently have mitochondrial DNA that can be traced back 60,000 years to the same mother.

Since there is clear evidence that Humans migrated out of Africa at least 100,000 years ago (and possibly 180,000 years ago), that theory has never made sense to me, either.

Also, there is significant evidence that Neanderthals evolved outside of Africa, and there is no question that almost all modern European and Asian humans have some Neanderthal DNA.


43 posted on 02/15/2018 10:44:24 PM PST by zeestephen
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To: eastforker

When you go and look at particular DNA talk, there are different waves of groups ‘walking out’ of Africa. Tribe-A goes in this era, Tribe-B goes in this era, etc. Each likely affected by changing weather, drought, and hunting practices.

In our way to view Africa by today’s standards, we fail to often grasp the fact that 150,000 years ago....in some area the size of Iowa, there might have only been four tribal groups (fifteen to thirty residents each), and they might not ever bump into each other. As the tribal units continued...they ‘married’ into each other and evolutionary situations might have been affected by this.


45 posted on 02/15/2018 10:49:27 PM PST by pepsionice
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To: eastforker
There is no way anyone can convince me that all the worlds civilizations came from one area of Africa.

They didn't, and don't. Civilizations are shaped by the conditions in the areas they rise in, not by the ancestral home of all mankind. But the people who created those civilizations all came from ancestors who came from Africa.
54 posted on 02/15/2018 11:34:16 PM PST by AnotherUnixGeek
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