From the latter part of the 5th century BC he was portrayed as a nude and beardless youth, a young athlete. He wore broad brimmed hat or winged cap, known as helmet of invisibility or darkness; winged sandals and the kerykeion also called in Latin caduceus. He was dressed in long tunic, clothes of traveler; shepherd or he was just undressed. Caduceus was originally a willow wand with entwined ribbons. But ribbons were later shown as serpents. To support this mythologically, a story evolved that Hermes used caduceus to separate two fighting snakes, which forthwith twined themselves together in peace. The shaft had often the wings attached. This wand, but with one snake – symbol of Greek god of healing Asclepius was adopted as a symbol of medical profession. His children are believed to be Pan, Abdereus and Hermaphroditus. Hermes as with the other gods had numerous affairs with goddesses, nymphs and mortals. Pan, the half man half goat, is believed to be the son of Hermes and either Penelope, the wife of Odysseus, or the nymph Callisto. Hermes took him to Mount Olympus and gods reveled in his laughter and his appearance and became patron of fields, woods, shepherds and flocks. His brother Abderus was companion of Heracles. He was devoured by Mares of Diomedes after Heracles had left him in charge of the ferocious beasts. Hermaphroditus is son of Aphrodite and Hermes. He was born on Mount Ida and raised by nymphs of freshwater called Naiads. He was androgynous deity, depicted either a handsome man with female breasts, or as Aphrodite with male genitals. Hermes is known for his helpfulness to mankind, both in his capacity as immortal herald and on his own initiative. He aided Perseus when he set out to face Gorgon Medusa. According one version of this myth he loaned Perseus his magic sandals, which had ability to fly. Some myths say that he also loaned him helmet of invisibility as well. Hermes liberated Zeus’ lover Io from hundred-eye giant Argus, who had been ordered by Hera, the jealous wife of Zeus, to watch over her. Hermes enchanted the giant with music of his flute and when the giant fell asleep he cut off his head and released Io. Hera as a gesture of thanks to her loyal servant, scattered the hundred eyes of Argos over the tail of peacock. He also persuaded the Nymph Calypso to release Odysseus. She had kept him captive after he was shipwrecked on her island. Hermes also saved Odysseus and his crew from being transformed into pigs by sorceress Circe. Hermes gave him an herb, which resisted the spell.