Period 1: 1491-1607
Key Concept 1.2: Contact among Europeans, Native Americans, and Africans resulted in the [BLANK] [BLANK] and significant social, cultural, and political changes on both sides of the Atlantic Ocean.
The [BLANK] [BLANK] above refers to what term was first used in 1972 by American historian Alfred W. Crosby in his environmental history book of the same name.
Columbian Exchange