Rosa Parks famously refused to give up her bus seat, sparking the Montgomery Bus Boycott in 1955. This act of protest against racial segregation in public transportation became a significant catalyst for the civil rights movement in the United States. Parks’ bravery and commitment to justice inspired others to take action against systemic racism. Her refusal represented a powerful challenge to the status quo, ultimately leading to changes in laws regarding segregation. Parks is celebrated as a symbol of courage and resistance in the fight for civil rights and social justice.