https://www.worldhistory.org/article/225/enuma-elish---the-babylonian-epic-of-creation---fu/

The Enuma Elish (also known as The Seven Tablets of Creation) is the Mesopotamian creation myth whose title is derived from the opening lines of the piece, "When on High". The myth tells the story of the great god Marduk's victory over the forces of chaos and his establishment of order at the creation of the world.

All of the tablets containing the myth, found at Ashur, Kish, Ashurbanipal's library at Nineveh, Sultantepe, and other excavated sites, date to c. 1200 BCE but their colophons indicate that these are all copies of a much older version of the myth dating from long before the fall of Sumer in c. 1750 BCE.

Mesopotamian Epic of Creation Tablet
Mesopotamian Epic of Creation Tablet
Osama Shukir Muhammed Amin (CC BY-NC-SA)
As Marduk, the champion of the young gods in their war against Tiamat, is of Babylonian origin, the Sumerian Ea/Enki or Enlil is thought to have played the major role in the original version of the story. The copy found at Ashur has the god Ashur in the main role as was the custom of the cities of Mesopotamia. The god of each city was always considered the best and most powerful. Marduk, the god of Babylon, only figures as prominently as he does in the story because most of the copies found are from Babylonian scribes. Even so, Ea does still play an important part in the Babylonian version of the Enuma Elish by creating human beings.