Babylonian religion is the religious practice of Babylonia. Babylonia's mythology was greatly influenced by its Sumerian counterparts and was written on clay tablets inscribed with the cuneiform script derived from Sumerian cuneiform. The myths were usually either written in Sumerian or Akkadian. Some Babylonian texts were translations into Akkadian from Sumerian of earlier texts, but the names of some deities were changed. Mesopotamian myths Babylonian myths were greatly influenced by the Sumerian religion, and were written on clay tablets inscribed with the cuneiform script derived from Sumerian cuneiform. The myths were usually either written in Sumerian or Akkadian. Some Babylonian texts were even translations into Akkadian from the Sumerian language of earlier texts, although the names of some deities were changed in Babylonian texts. Many Babylonian deities, myths, and religious writings are singular to that culture; for example, the uniquely Babylonian deity, Marduk, replaced Enlil as the head of the mythological pantheon. The Enûma Eliš, a creation myth epic was an original Babylonian work. In it, Apsu and Tiamat created "the elements of the world", but fought for various reasons, with Tiamat winning but being slaughtered along with her army by Marduk. Marduk became the first king within Tiamat's split body, which created the earth and sky, and founded Babylon. 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. In Babylonian religion, the ritual care and worship of the were considered sacred; the gods lived simultaneously in their statues in temples and in the natural forces they embodied.