Final answer:
Rosa Parks violated the city ordinance of Montgomery, Alabama that required racial segregation on buses.
Step-by-step explanation:
Rosa Parks violated the city ordinance of Montgomery, Alabama that required racial segregation on buses. On December 1, 1955, she refused to give up her seat to a white passenger, which was in direct violation of the ordinance. This act of defiance sparked the Montgomery Bus Boycott and became a significant event in the Civil Rights Movement.
Learn more about Rosa Parks' violation of the Montgomery, Alabama city ordinance