Montgomery Bus Boycott
From Tardis Wiki, the free Doctor Who reference
The Montgomery Bus Boycott was an important event in civil rights history. Started by Rosa Parks in Montgomery, Alabama on 1 December 1955, the boycott was enacted by bus passengers throughout Montgomery who refused to use the segregated bus services for over a year.
The boycotts were successful, and eventually, racial segregation on buses in Montgomery was illegalised on 21 December 1956, ushering in the Civil Rights Movement, led by Martin Luther King. (TV: Rosa)