Reason 1: African American history began with slavery, as white European settlers first of the 18th century, but the institution was absolutely vital to the South, where Black.
Reason 2: By the mid-20th century, Black Americans had had more than enough of prejudice and, They were also discouraged from joining the military.
Reason 3: Black voters were systematically turned away from state polling places.
Answer:
It gave the Union army control of the Mississippi River
This was the Qing dynasty: all the previous dynasties ruled over areas visibly smaller (even by 50%) than today's area of China. The Qing, a dynasty from Manchuria was also the last dynasty.
Before this, the Qin dynasty also united a big number of areas, and in certain contexts, this could also be the correct answer (it united all of today's eastern China).
It was the "Battle of Lake Erie" that established the U.S. Navy as a strong fighting force, since this took place against what was thought to be a superior British Navy.
