What was the scientific revolution?

The scientific revolution, which emphasized systematic experimentation as the most valid research method, resulted in developments in mathematics, physics, astronomy, biology, and chemistry. These developments transformed the views of society about nature.

they were treated very badly. they were targeted by white supremacists and other groups, like the klu klux klan, even after coming back to the country as veterans. they were seen as inferior and gave the african americans new found motivation to fight against this racial injustice. 

i can try to solve it just show the graph.