1972 was a presidential election year. They fought
Cultural exchange and the change in global population are the immediate consequences of the columbian exchange. Proliferation of invasive species and some communicable diseases are the most important byproducts of the columbian exchange.
The Great Migration/ The North Migration. The time period was fro 1916 to (I believe) 1970. During this time people migrated from the South to the North because they had so many more opporunities compared to in the South since they had actual factories there.
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this is a exam questions do with self
