Evolutionist Out of Africa vs.Creationist earlier splintering into subgroups
":.... that discusses the molecular clock hypothesis and its relation to the Recent African Origins hypothesis.... My arguments in the article above are mainly for Mitochondrial Eve, but they apply just as well for Y-chromosome Adam. If the molecular clock is not valid, the root cannot
be placed anywhere on the tree with confidence. This is a critical point and should answer your question.
The fact that some Africans (not all!) are very different from other people in the world (including other Africans) indicates to me that, rather than being part of the most ancient human population, they probably had different demographic history than other world populations (a population broken up into many small tribal groups is but one possible factor) and this led to extreme genetic divergence." RobertCarter/CMI
And so it is written, The first man Adam was made a living soul;
1 Corinthians 15:45