answers: 1937
context: War Admiral War Admiral (May 2, 1934 – October 30, 1959) was an American thoroughbred racehorse, best known as the fourth winner of the American Triple Crown and Horse of the Year in 1937, and rival of Seabiscuit in the 'Match Race of the Century' in 1938. During his career toward the end of the Great Depression, War Admiral won 21 of his 26 starts with earnings of $273,240 ($3.5 million in 2016 dollars.) After his retirement stud, he was the leading sire in North America for 1945 and was also an outstanding broodmare sire whose influence is still felt </s> time of their win by their breeders. Jim Fitzsimmons and Bob Baffert are the only two trainers to have two horses win the Triple Crown, with Fitzsimmons training the sire/son combination of 1930 winner Gallant Fox and 1935 winner Omaha and Baffert training 2015 winner American Pharoah and 2018 winner Justify. The wins by Fitzsimmons were also the first time that an owner and the first time that a breeder, Belair Stud holding both duties, had a repeat win of the Triple Crown. Calumet Farm is the only other owner with two Triple Crown horses, 1941 winner Whirlaway and 1948 </s> Sea Hero Sea Hero (foaled March 4, 1990 in Virginia) is an American-bred Thoroughbred racehorse best known for winning the 1993 Kentucky Derby and Travers Stakes. Since 2011, Sea Hero is the oldest living winner of the Kentucky Derby. Sea Hero was bred in Virginia by Paul Mellon and raced for Mellon's Rokeby Stables. Sea Hero was by Polish Navy, who was a good racehorse but otherwise a disappointment as a sire. Sea Hero's dam was Glowing Tribute, who descended from one of the most distinguished thoroughbred families in North America – that of La Troienne. Glowing Tribute was named
question: when did war admiral win the triple crown