Medusa who was turned into stone by the head. Then Perseus gave the Gorgon's head to Athena, who placed it on her shield, the Aegis. Some classical references refer to three Gorgons; Harrison considered that the tripling of Medusa into a trio of sisters was a secondary feature in the myth: A number of early classics scholars interpreted the myth of the Medusa as a quasi-historical – "based on or reconstructed from an event, custom, style, etc., in the past", or "sublimated" memory of an actual invasion. According to Joseph Campbell: In 1940, Sigmund Freud's "Das Medusenhaupt (Medusa's Head)" was published
Pierides (mythology) Pierides (mythology) In Greek mythology, the Pierides (Ancient Greek: Πιερίδες) or Emathides (Ἠμαθίδες) were the nine sisters who defied the Muses in a contest of song and, having been defeated, were turned into birds. The Muses themselves are sometimes called by this name. They were the daughters of Pierus, king of Emathia in Macedon, by Antiope of Pieria or Euippe of Paionia. The sisters were also called Emathides, named after their paternal uncle Emathus. In Ovid's "Metamorphoses", Urania, one of the Muses recounts their contest with the Pierides to Athena in the following excerpts:"So spoke the Muse. And now was