When was the first wave out of Africa

Explanation:

his theory has gained more support in recent years due to DNA research. Evidence from a genetic study indicates an expansion out of Africa about 1.9 million years ago

roosevelt essentially took the opposite approach as hoover in taking on the great depression. herbert hoover thought that america and its economy could naturally recover from the depression in due course, so he adamantly restrained the federal government from intervening on behalf of the people affected. on the other hand, roosevelt dramatically increased employment by expanding the federal government and establishing agencies that would aid in relieving some of the country's worst problems.

sense of self-interest