Rosa Parks was a civil rights activist who played a pivotal role in the American Civil Rights Movement. She is most famous for her act of defiance on December 1, 1955, when she refused to give up her seat to a white passenger on a segregated bus in Montgomery, Alabama. This led to her arrest, sparking the Montgomery Bus Boycott, a key event in the Civil Rights Movement.

Parks' refusal to move to the back of the bus was a courageous stand against racial segregation and discrimination. Her act of civil disobedience inspired others and helped to mobilize the African American community in the fight for civil rights. Parks' actions, along with the leadership of figures like Martin Luther King Jr., eventually led to the desegregation of buses in Montgomery and became a symbol of resistance against injustice.

Rosa Parks' bravery and determination made her an icon of the Civil Rights Movement and her legacy continues to inspire people around the world to stand up for equality and justice.