The omens of the series Enuma Anu Enlil, "When Anu (and) Enlil," are introduced by two slightly different mythological passages, one following the other. The first is written in a late period pseudo-Sumerian; the second is in Akkadian. Strictly speaking, "When Anu (and) Enlil" is not the ancient name of the series of omens, but the incipit (beginning words) of the Sumerian introduction.

Sumerian

When An, Enlil, and Enki, the great (Sumerian) gods, by their decision established the eternal order of heaven and earth, and the boat of Suen, the new moon to wax, to give birth to the month and the sign of heaven and earth, the celestial boat they caused to appear and to come forth in the heavens to be seen.

Akkadian

Otherwise: When Anu, Enlil, and Ea the great (Akkadian) gods, by their decision laid...