If all of humanity came from the same original human ancestors,

>>3279537
The three sons of adam and eve got into a fight who could impregnate eve first.
thats how it broke up bro.

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The Tower of babel is an explanation for how the original Human Language became many languages. The answer to how it really happened is that when people are in isolation, they go off and change in different ways.

Look at American and British English, one says Parking Lot, the other says Car Park. As time goes on, languages naturally shift, and if people are separated, they shift in different directions.

>>3279553
>The answer to how it really happened is that when people are in isolation, they go off and change in different ways.
Wouldn't it make more sense to stick together? Why would anyone want to abandon their friends and family for the very first time in human history?

>>3279652
Probably for the same reason you move out now, space. A certain area may only have enough resources for a group of any specified size, so you move out into different areas.

Another thing is political reasons. Why be a sub alpha when you could go set off and be the alpha of a different group, or maybe your views differed with your alpha male. There are so many reasons, even if you assume modern humans originated as one group of individuals.

>>3279671
>if you assume modern humans originated as one group of individuals
Is it possible they didn't?

>>3279679
Yeah, there may have been a number of different pre-human groups of apes that had enough gene flow with one another to remain conspecific. In fact, this is confirmed to have happened, since every Human race today have admixture from different subspecies, like Neanderthal and Denisovans. Yes, even Africans, though we have no idea what they interbred with, since we have no DNA of it, but we know they have non H. sapiens sapiens admixture of some kind of African Hominid.

>>3279537
The early humans had greater genetic variability and formed small tribes with different cultures which each favored different genetic traits within their cultures. Which led to racial diversification.