Answer:
I was caused by segregation between African Americans and Whites.
Explanation:
The civil rights movement is a period in america's history from around the early 50s to mid 60s. Everything had 2 areas. One for African American's and Whites. It was caused because Whites still believed they were the supreme race and that African American's were a lesser one. 1 significant event that led to the end of segregation was Dr Martin Luther King Jr's I have a dream speech.
Your answer is Economy, the system of production and distribution and consumption of goods and services.
The railroads help transfer people and goods across the United States lot faster than on horse. Also helped with mailing.
