Seabiscuit was born (or more accurately ‘foaled’) on May 23rd, 1933 in Lexington, Kentucky. He was the son of a nasty-tempered rogue named Hard Tack, and a gentle mare named Swing On. Seabiscuit’s father had great speed, no doubt owing to his own pedigree. His father, Man o’ War, was considered by most experts at the time to have been the greatest racehorse ever produced… although his grandson would certainly go on to challenge that claim. The problem with Hard Tack was that he was uncontrollable... Even hall of fame trainer ‘Sunny’ Jim Fitzsimmons couldn’t tame him.