One of the things that stimulated US imperialism was the end of World War II, since the US emerged from the war the greatest superpower in the world--which allowed it to assert itself on a global scale in attempts to implement democracy.
It was the <span>good neighbor policy</span>
If your talking about the time period i believe you are the answer should be Andrew Jackson.
Hiram Revels
African American Senators. To date, ten African Americans have served in the United States Senate. In 1870, Hiram Revels of Mississippi became the first African American senator. Five years later, Blanche K. Bruce of Mississippi took the oath of office.
