Answer:
The three events that set off the civil rights movement during the 1950s were: the refusal of Rosa Parks in a bus, little rock nine and the Selma march. Rosa Parks helped initiate the civil rights movement in the United States by fighting for the struggle for racial equality. She refused to give up her bus seat to a white man in Montgomery, Alabama. Little rock nine were the African American children who challenged the racial segregation in the public schools in Arkansas. The Selma march was a non-violent march by the African America to end segregation and given equal rights to vote.