_:vb6815154 "1658, Edward Topsell, \u201COf the horse\u201D, in The History of Four-Footed Beasts and Serpents, page 234:"@en . _:vb6815154 "It behooveth therefore that the Mares appointed for race, be well compacted, of a decent quality, being fair and beautiful to look upon, the belly and loins being great, in age not under three nor above ten years old."@en .