The Theory of Evolution has recently come under much scrutiny. We recommend exploring the National Center for Science Education for more information about the credibility of the Theory of Evolution.
The University of California has published an excellent web-based gallery focused on human evolution. View it here.
Current genetic research is consistent with the theory that a major migration of people out of Africa occurred 100,000 to 200,00 years ago. Modern Africans show greater genetic diversity than people do in other parts of the world. This suggests that the African gene pool has greater antiquity than that of Europe or Asia, and thus that modern humans originated in Africa.