Rosa Parks is widely recognized for her pivotal role in the Civil Rights Movement alongside Martin Luther King Jr.. Her act of defiance on December 1, 1955, when she refused to give up her bus seat to a white man, became a significant catalyst for the movement. Parks' actions highlighted the struggles against segregation and injustice, sparking the Montgomery Bus Boycott. She became an enduring symbol of resistance and bravery in the fight for racial equality, inspiring countless others to advocate for civil rights.