Complex sentence: Originally opened in 1921 by the famous aviation pioneer Glenn Curtiss and his partner James Bright, in 1925 the Miami Jockey Club launched Hialeah's race track on January 25,1925.
Split into simpler sentences: Originally opened in 1921 by aviation pioneer Glenn Curtiss and his partner James Bright. The Miami Jockey Club launched Hialeah's race track on January 25,1925.