AP World History: Modern
America refers to the continents of North and South America, which were pivotal during the period from 1750 to 1900 as they experienced significant social, economic, and political changes. The allure of economic opportunity, land, and freedom drove millions to migrate to America, transforming it into a melting pot of cultures. Additionally, America's involvement in World War I marked a significant shift in its global role, transitioning from a nation primarily focused on domestic affairs to a prominent player on the world stage.