Rosa Parks is renowned for her critical contributions to the fight against racial segregation in the United States. Her refusal to give up her bus seat to a white passenger in Montgomery, Alabama, in 1955 became a pivotal act of civil disobedience, sparking the Montgomery Bus Boycott. This act of courage galvanized the African American community and was a catalyst for the larger Civil Rights Movement. Parks' legacy is one of bravery and commitment to achieving equality and social justice.