Which civil rights spokesperson became famous after refusing to move to the back of the bus in 1955?

Rosa Parks became famous after her act of civil disobedience on December 1, 1955, when she refused to give up her seat to a white passenger on a segregated bus in Montgomery, Alabama. Her arrest sparked the Montgomery Bus Boycott, a pivotal event in the American Civil Rights Movement. Parks' courageous stand is often credited with igniting a larger push for racial equality and justice in the United States.