Great Divide
How the division of the Americas from the rest of the world affected human history.
In 15,000 B.C. early humankind, who had evolved in Africa tens of thousands of years before and spread out to populate the Earth, arrived in Siberia, during the Ice Age. Because so much water was locked up at that time in the great ice sheets, several miles thick, the levels of the world''s oceans were much lower th...
How the division of the Americas from the rest of the world affected human history.
In 15,000 B.C. early humankind, who had evolved in Africa tens of thousands of years before and spread out to populate the Earth, arrived in Siberia, during the Ice Age. Because so much water was locked up at that time in the great ice sheets, several miles thick, the levels of the world''s oceans were much lower th...
