What was the first musical written, produced, and performed by african american

List three reasons why explorers began to explore new, and old areas. [[ps: doesn't explicitly say where. i think it's more in general.

Many asian immigrants came to the united states in the 1960s and 1970s because of push factors, including the possibility of religious freedom. economic opportunities. the chance of family reunions. o poverty and chaos.

What event led to the progressive movement?