I don't remember just when it was;however,I do remember that not too long ago,a skeleton/s about as old as LUCY, was found in China.That blows the "out of Africa" junk out of the water completely!
There are three races...that's it! If evolution and the "out of Africa" stuff were both true,then why didn't some parents in China,let's say,ever have a Negroid looking child?
That's why I think it's all 'iffy' right now as far as origin theories are concerned. So human beings have a penchant for classsifying people, and athropologically I've always read that there are three anthropological races. Most scientists say that Australian aborigines are 'caucasian'. In today's modern society there are lots of mixing of cultures but I don't think much of that was going on in the Ice Age *LOL*
Evolutionary theory says that they wouldn't. So you've answered your own question.