Babylonian months, their lengths, and the alternating pattern of days.
The Akitu festival was celebrated twice a year in ancient Mesopotamia, most notably at the beginning of the Babylonian calendar’s first month, Nisannu (March-April), and again in the seventh month, Tashritu (September-October).
Sumerian
Mesopotamian Creation Myths
Everything was dark; there was neither sunlight nor moonlight. However, the earth was green and had water underground, but there was no vegetation.