Muses
The daughters of Mnemosyne and Zeus, the fruits of nine nights of love-making. Other traditions claim that they are the daughters of Harmonia, or the daughters of Uranus and Gaia. The Muses were not only divine singers, whose music delighted Zeus and other gods; they also presided over thoughts in all its forms: eloquence, persuasion, knowledge, histroy, mathematics, astronomy… (Grimal, 1990)