MAIA was the eldest of the Pleiades. As daughter of Atlas and Pleione, she was sometimes called either Atlantis or Pleias. One account called her a daughter of Atlas and Sterope, his own daughter. She was visited in a cave on Mount Cyllene in Arcadia by Zeus and became the mother of Hermes, one of the Olympian gods. He was surnamed Cyllenius from his birthplace. That is the extent of what we know of Maia. After Zeus had his affair with Callisto and she was changed into a bear, the baby, Arcas, was carried to Maia to be brought up. In a manner of speaking, he was her stepson, but so were scores of other sons of Zeus. Maia is famous through her son, for her presence is felt in the nursery adventures of the god of thieves. Hermes escaped from his cradle and went to Pieria, carrying off some of Apollo's oxen, but was forgiven when he invented the lyre from a tortoise shell. He became the messenger of the other gods, and was notorious for his ingenuity and cunning. We lose sight of Maia after Hermes became adult. She was not even mentioned in the upbringing of Dionysus, in which Hermes took a part. The Romans had a divinity called Maia, or Majesta, who was sometimes considered the wife of Vulcan, largely because a priest of Vulcan offered a sacrifice to her on May 1. Later, she became identified with the Greek Maia and was called the mother of Mercury. [Homeric Hymn to Hermes 3,17; Hesiod, Theogony 938; Apollodorus 3.10.2,8.2; Horace, Odes 1.10.1, 2.42; Macrobius, Saturnalia 1.12; Gellius 13.22; Servius on Virgil's Aeneid 8.130; Pausanias 8.17.1.]