Sparked by the arrest of Rosa Parks on 1 December 1955, the Montgomery bus boycott was a 13-month mass protest that ended with the U.S. Supreme Court ruling that segregation on public buses is unconstitutional. The Montgomery Improvement Association (MIA) coordinated the boycott, and its president, Martin Luther King, Jr., became a prominent civil rights leader as international attention focused on Montgomery. The bus boycott demonstrated the potential for nonviolent mass protest to successfully challenge racial segregation and served as an example for other southern campaigns that followed. In Stride Toward Freedom, King’s 1958 memoir of the boycott, he declared the real meaning of the Montgomery bus boycott to be the power of a growing self-respect to animate the struggle for civil rights.