Rosa Louise McCauley Parks (February 4, 1913 - October 24, 2005) was an activist in the civil rights movement best known for her pivotal role in the Montgomery Bus Boycott. The United States Congress has called her "the first lady of civil rights" and "the mother of the freedom movement". On December 1, 1955, in Montgomery, Alabama, Parks refused to obey bus driver James F. Blake's order to give up her seat in the "colored section" to a white passenger, after the whites-only section was filled. Parks was not the first person to resist bus segregation, but the NAACP believed that she was the best candidate for seeing through a court challenge after her arrest for civil disobedience in violating Alabama segregation laws.

In 1900, Montgomery had passed a city ordinance to segregate bus passengers by race. Conductors were empowered to assign seats to achieve that goal. According to the law, no passenger would be required to move or give up their seat and stand if the bus was crowded and no other seats were available. Over time and by custom, however, Montgomery bus drivers adopted the practice of requiring black riders to move when there were no white-only seats left.  The first four rows of seats on each Montgomery bus were reserved for whites. Buses had "colored" sections for black people generally in the rear of the bus, although blacks composed more than 75% of the ridership. The sections were not fixed but were determined by placement of a movable sign. Black people could sit in the middle rows until the white section filled; if more whites needed seats, blacks were to move to seats in the rear, stand, or, if there was no room, leave the bus. Black people could not sit across the aisle in the same row as white people. The driver could move the "colored" section sign, or remove it altogether. If white people were already sitting in the front, black people had to board at the front to pay the fare, then disembark and reenter through the rear door.  For years, the black community had complained that the situation was unfair. Parks said, "My resisting being mistreated on the bus did not begin with that particular arrest. I did a lot of walking in Montgomery."  One day in 1943, Parks boarded a bus and paid the fare. She then moved to her seat but driver James F. Blake told her to follow city rules and enter the bus again from the back door. When Parks exited the vehicle, Blake drove off without her. Parks waited for the next bus, determined never to ride with Blake again.

When did the bus incident occur?
One day in 1943,