The term 'Nine Goddesses of the Arts' refers to the MUSES, nine goddesses in Greek mythology who were each associated with a different art form. They were believed to inspire creativity and artistic endeavors, and were often invoked by artists seeking inspiration. The MUSES were daughters of Zeus and Mnemosyne, and were named Calliope, Clio, Erato, Euterpe, Melpomene, Polyhymnia, Terpsichore, Thalia, and Urania.