Seventy-five million people live in the Americas. The city of Cahokia, on the Mississippi plain, is home to approximately 20,000 people. Tenochtitlan is home to 250,000. In 1492, Europe was home to 60 million people. Over the next three centuries, approximately two and a half million Europeans emigrated to the Americas, and 12 million Africans were also taken as slaves.
