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date: 26 October 2021

Columbian Exchange. 

Source:
The Oxford Companion to United States History
Author(s):
Alfred W. CrosbyAlfred W. Crosby

As of 1492, the Americas and Eurasia-Africa, except for occasional connections via the Bering Strait, had been separated for millions of years. During this time, organisms diverged in their evolution, and human beings on either side of the Atlantic developed their own ways of life, including their own crops, domesticated animals, and ... ...

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