Mile. Mythology Throughout history, white horses have been mythologized in many cultures. For example, Herodotus reported that white horses were held as sacred animals in the Achaemenid court of Xerxes the Great (ruled 486–465 BC), In more than one tradition, a white horse carries patron saints or the world saviour in the end times, including Hinduism, Christianity, and Islam. See also When a white horse is not a horse References Horse coat colors