The
Montgomery Bus Boycott, a seminal event in the
U.S. Civil Rights Movement, was a political and social
protest campaign against the policy of
racial segregation on the public transit system of
Montgomery,
Alabama. The campaign lasted from December 1, 1955—when
Rosa Parks, an
African American woman, was arrested for refusing to surrender her seat to a white person—to December 20, 1956, when a federal ruling,
Browder v. Gayle, took effect, and led to a United States Supreme Court decision that declared the Alabama and Montgomery laws requiring segregated buses to be unconstitutional. Many important figures in the
Civil Rights Movement took part in the boycott, including Reverend
Martin Luther King, Jr. and
Ralph Abernathy.