This Flash movie has 160,000 years of human development in just a few minutes - starting in East Central Africa. About 90,000 years ago there was a rapid and deep freezing which wiped out most of early man (a scenario which has been repeated occasionally).
The spread of genetic factors (such as APOEe4, which allowed some individuals to better weather famine) follows along with the migration routes.
Australia was populated long before most of Europe and the Americas.
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