In December 1955, Rosa Parks was returning home from work on a bus in Montgomery, Alabama.
Segregation laws in Montgomery stated that when a bus was full the black passengers must stand and give their seat to a white passenger.
However, Parks refused to give up her seat and was subsequently arrested.
Park’s actions sparked a boycott (avoidance) of buses in Montgomery by the African American population.
Throughout the boycott Martin Luther King led the protests against segregation on Montgomery’s bus system.
This affected the income of the bus company, as around 60 to 70 per cent of customers had been African Americans.
The courts decided that the segregated nature of Montgomery’s buses was unconstitutional and ordered that they be desegregated.