Asclepius was a Greek hero who later become the Greek god of medicine and healing. He was worshipped throughout the Greek world but his most famous sanctuary was located in Epidaurus which is situated in the northeastern Peloponnese. The main attribute of Asclepius is a physician's staff with an Asclepian snake wrapped around it; this is how he was distinguished in the art of healing, and his attribute still survives to this day as the symbol of the modern medical profession. The cock was also sacred to Asclepius and was the bird they sacrificed as his altar.
Apollo handed Asclepius to the Centaur Chiron who became his tutor and mentor. Chiron taught Asclepius the art of healing. According to Pindar (Pythian Odes), Asclepius also acquired the knowledge of surgery, the use of drugs, love potions and incantations, and according to Apollodorus (the Library), Athena gave Asclepius a magic potion made from the blood of the Gorgon. Legend tells that the blood of the Gorgon has a different effect depending from which side the blood was taken. If taken from the right side of the Gorgon, it has a miraculous effect and is said to be able to bring the dead back to life, but taken from the left side it is a deadly poison.
Realising the good Asclepius had brought to man, the great Zeus made him into a god, placing him among the stars, transforming Asclepius into the constellation Ophiuchus (the serpent-bearer). The snake was used in the healing ritual; non-poisonous snakes were left in the dormitory where the sick slept overnight on the bare ground.
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