Enûma Eliš
Tablet fragments from the Neo-Babylonian period describe a series of festival days celebrating the New Year. The Festival began on the first day of the first Babylonian month, Nisannu, roughly corresponding to April/May in the Gregorian calendar. This festival celebrated the re-creation of the Earth, drawing from the Marduk-centered creation story described in the "Enûma Eliš".