In 1955, Martin Luther King, Jr. was recruited to be the spokesperson for the Montgomery Bus Boycott. This was a campaign by African Americans in Montgomery, Alabama to end segregation on the city's buses. The boycott lasted for 381 days, and during that time, many African Americans had to walk long distances to work. However, the boycott was successful, and the U.S. Supreme Court ruled that racial segregation in transportation was unconstitutional.