The Winnowing Oar (athereloigos - Greek ἀθηρηλοιγός) is an object that appears in Books XI and XXIII of Homer's Odyssey.[1] In the epic, Odysseus is instructed by Tiresias to take an oar from his ship and to walk inland until he finds a "land that knows nothing of the sea", where the oar would be mistaken for a winnowing shovel. At this point, he is to offer a sacrifice to Poseidon, and then at last his journeys would be over.