Rosa Parks's arrest and trial led to the Montgomery bus boycott. Rosa Parks was an African-American woman who refused to sit in the back of the bus where African-Americans were forced to sit and to give up her seat in the front of the bus. She later became an activist. Montgomery was a very segregated city in Louisiana and the Montgomery bus boycott was when African-Americans refused to ride the bus and this was very representative, because African-Americans were a big part of the economy and since they were not paying for the buses, the buses were losing about half of its customers and half of its revenue. The Montgomery bus boycott was very important in the Civil Rights Movement.