Freedom riders were civil rights activists who rode interstate buses in the Southern United States in 1961 to challenge segregation in public transportation. The Freedom Riders, both black and white, intentionally sat in integrated seating and visited "white only" facilities to test if bus terminals were desegregating. When the Freedom Riders reached Anniston, Alabama, one bus was firebombed and its riders beaten by a mob. In Birmingham, another mob severely beat the riders with pipes and bats after dragging them from the bus. Despite the violence, over a thousand people participated in Freedom Rides over the next six months to end bus segregation across the South.