In alchemical tradition, the Moon was associated with silver. In many European languages, the word for Monday originates from Latin Lunae dies, i.e. “moon day”, after Roman goddess Luna (lundi, lunedì, lunes, luni) or Germanic god Máni (maanantai, maandag, måndag, Montag, etc.). Other lunar deities include goddesses Anumati, Artemis, Chang’e, Hecate, Hina, Isis, Kuu, Mama Killa, Phoebe, Selene and Yemaya, as well as gods Ay Ata, Bahloo, Jarilo, Sin, Thoth and Tsukuyomi.
The crescent, typically in decrescent orientation ☾, is associated with Islam. Its combination with a five-pointed star, the star and crescent ☪, is used in a number of national flags. The flag of the Comoros shows the crescent and four stars; the Flag of Singapore has the crescent and five stars. The flag of the Maldives features a crescent without any stars.