The answer is D
A good way to remember this is to think about America before or pre-columbus, who came to the americas in 1492.
Answer:
It provided a theme for art.
The election of Hiram Rhodes Revel was significant because he became the first African-American citizen to ever serve in the US Congress. He was first elected in 1870 to represent that state of Mississippi. This election showed that the Reconstruction policies of the Radical republicans were working, as they were providing African-Americans political opportunities.
Social Darwinists believe in “survival of the fittest”—the idea that certain people become powerful in society because they are innately better. Social Darwinism has been used to justify imperialism, racism, eugenics and social inequality at various times over the past century and a half.