Rosa Parks's pivotal events, particularly her refusal to give up her bus seat in Montgomery, ignited the civil rights movement. This act of defiance on December 1, 1955, symbolized resistance against racial segregation in the United States. Her arrest spurred grassroots activism and led to the Montgomery Bus Boycott, a pivotal protest that lasted over a year. Parks's bravery emphasized the power of individual action in enacting social change, and she became an enduring symbol of courage and determination. Her contributions to the movement extend beyond this incident, establishing her as a key figure in the fight for racial equality.