1 Modern humans evolved about 150,000 years ago and started moving out of africa about 100,000 years ago. There were modern people in Australia at least 60,000 years ago, western Europe 40,000, North America at least 13,000.
I've read about some genetic evidence that humans reached North America Earlier than this from Western Europe along the Ice edge making a living much as the Inuit do today. This is also suported by the similarity of Clovis points and tools of the
Sultrian