History of bigotry in the United States

["Toleration" "Race relations" "Persecution" "Freedom of religion" "History" "Ku-Klux Klan (1866-1869)" "Ku Klux Klan (1915- )" "Ku Klux Klan (19th century)" "Persecuciones religiosas" "Tolerancia" "Cuesti\u00f3n racial"]