The Columbian Exchange
When Christopher Columbus and his men became the first Europeans to arrive in the Americas in 1492, they set in motion a process of cultural, economic, and environmental exchange that had profound effects for the whole world. For the “old,” Afro-Eurasian world, an important transformation included the addition of valuable new food items into the diets of people in such widely separated regions as Ireland, China, and sub-Saharan- Africa.For the”new,”American world, the most significant transformation involved the deadly effects of Afro-Eurasian diseases among its peoples, which in turn helped pave the way for imperial conquest by Europeans. After two centuries of what is now known as the Columbian Exchange, both Old and New Worlds were transformed.
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