Dr. Martin Luther King Jr. led the Montgomery Bus Boycott in 1955-1956 after Rosa Parks was arrested for refusing to give up her seat to a white passenger. The year-long boycott was successful and ended racial segregation on Montgomery buses. As the leader of the Civil Rights Movement, Dr. King advocated for nonviolent protests like marches and sit-ins to bring attention to racial injustices and fight for equal rights. His iconic "I Have a Dream" speech was delivered at the 1963 March on Washington where he envisioned a future with racial equality. Dr. King's message of nonviolence had a profound impact on social change.