The Muses

Nine daughters of Zeus and Mnemosyne — Clio, Euterpe, Thalia, Melpomene, Terpsichore, Erato, Polyhymnia, Urania and Calliope, "the chiefest of them all" — born in Pieria after nine nights, who dance on Helicon and Olympus, taught Hesiod his song, give kings their eloquence, and are the authority every epic poet invokes.