The best description I can think of is:
This is the original source material for every major religion on the planet...
and where all the stories told in the Bible, that most of us are familiar with, where derived from.
The "creation" event, Adam and Eve, Ka'in and Ab'el, the tower of Babel and the confusion of tongues, all of it... started here.
Taken from the 6,000 year old Sumerian cuneiform tablets found in Mesopotamia.