We’ve read Gilgamesh, The Illiad, The Odyssey, The Bible, The Qur’an, Rumi, the Ramayana, Sir Gawain and the Green Knight, Confucious, Aristotle, Sappho, Catullus, ect. . . . ancient World Literature, what would be examples of doppelgangers in any of these stories and what characters would they be?