QUOTE (grampy @ Sep 1 2008, 10:54 AM)

I believe that the journey of man was about the first humans to populate the worlds continents the first group that walked out of Africa to find and follow the migrating herds of animals..Humans were living for millions of years before that
It depends on what you call "human".
Homo sapiens sapiens appeared in East Africa 200-140,000 years ago.
There were earlier members of the genus homo (homo erectus) and earlier hominids (australopithecus afarensis), but technically speaking, would not be considered modern humans. Yes, we can find fossil evidence of the homo genus going back 2 million years.
The migration you're speaking of is probably at most 100,000 years old. Cro-Magnons arrived in Europe 40,000 years ago. My point being, unless the multiregionalists are correct, all genetic "racial" difference between modern humans has appeared within an extremely recent speciation.