Lincoln's Gettysburg Address reminded the nation that the purpose of the Civil War
was to

The speech reflected his redefined belief that the Civil War was not just a fight to save the Union, but a struggle for freedom and equality for all, an idea Lincoln had not championed in the years leading up to the war

Explanation:

he armenian genocide, also known as the armenian holocaust, was the ottoman government's systematic extermination of 1.5 million armenians, mostly citizens within the ottoman empire.

explanation:

some american cities felt workers were being oppressed by business monopolies