The 12 horses that have won the Triple Crown

(Reuters) - The 12 horses that have won U.S. horse racing's Triple Crown after American Pharoah's victory in the Belmont Stakes on Saturday. The Triple Crown, for three-year-old Thoroughbreds, consists of the Kentucky Derby, the Preakness Stakes and Belmont Stakes. - Sir Barton (1919) Gallant Fox (1930) Omaha (1935) War Admiral (1937) Whirlaway (1941) Count Fleet (1943) Assault (1946) Citation (1948) Secretariat (1973) Seattle Slew (1977) Affirmed (1978) American Pharoah (2015) (Compiled by Gene Cherry, editing by Steve Ginsburg)