In 1878, during a World Tour, General U. S. Grant developed a friendship with the Sultan Hamid of Turkey. Before his departure from Turkey, the Sultan presented Grant with tow horses whose descendants continue to make an impact on the horse world today. One was a desert Arabian named Leopard and the other, a Barb named Linden Tree. Both of these stallions are listed in stud books of two American breed registries, the Arabian Horse Registry of America and the Jockey Club. There impact on the horse world touches almost every breed in the United States.