Seattle Slew
Affirmed in 1978.
Seattle Slew
Seattle Slew.
He sired no Triple Crown Winner.
Canadian Triple Crown of Thoroughbred Racing was created in 1959.
There was no American, Canadian, English, or Irish Triple Crown winner in 1923.
The most recent American Triple crown winner was Affirmed in 1978.
Citation won the Triple Crown in 1948
No the last triple crown winner was Affirmed 1978
There was no MLB triple crown winner in 1902.
There were no Thoroughbred Triple Crown winners in 2012.
The Kentucky Derby is the first leg of the Triple Crown, a horse that wins the Kentucky Derby, The Preakness, and the Belmont Stakes becomes the Triple Crown Winner