The Morab is a horse originally created by cross-breeding Arabian and Morgan horses. There is evidence that American Quarter Horses have Morab blood in their early history. Morab horses were first bred in the 1800s. The publisher William Randolph Hearst is credited with coining the term "Morab". Hearst bred Morabs by crossing his Crabbett-based Arabian stallions to his Morgan mares. Mrs. William Randolph Hearst II said in her book Horses of San Simeon that Hearst, "... found the produce were excellent for work on his California Ranch." The first Morab registry was started in 1976, and has been maintained since 1993 by the International Morab Registry.