sentences:  That same year, he purchased a controlling interest in the Miami Jockey Club and in 1931 renovated Hialeah Park.Hailed as one of the most beautiful Thoroughbred race tracks in the world, in 1979 Hialeah Park was listed on the United States National Register of Historic Places.Major races here were the Widener Handicap inaugurated in 1936, and the Flamingo Stakes, an important stepping stone to the Kentucky Derby for 3-year-old horses.