Dragons in Greek mythology guarded the Golden Fleece at Colchis. It was said to never sleep, rest, or lower its vigilance. According to Ovid's "Metamorphoses", the monster had a crest and three tongues. When Jason went to retrieve the Fleece, the witch Medea put the dragon to sleep with her magic and drugs, or perhaps Orpheus lulled it to sleep with his lyre. Afterwards, Medea herself had dragons pull her chariot. The Ismenian Serpent, of the spring of Ismene at Thebes, Greece, was slain by the hero Cadmus. It was the offspring of Ares, who later turned the hero into a serpent. According to
Golden Fleece the Golden Fleece signified the bringing of sheep husbandry to Greece from the east; in other readings, scholars theorized it referred to golden grain, or to the sun. A more widespread interpretation relates the myth of the fleece to a method of washing gold from streams, which was well attested (but only from c. 5th century BC) in the region of Georgia to the east of the Black Sea. Sheep fleeces, sometimes stretched over a wood frame, would be submerged in the stream, and gold flecks borne down from upstream placer deposits would collect in them. The fleeces would be