We read here what has to be the establishment of what we understand as a priesthood. It is also clearly a source text for the teachings of Moses to some degree or the other. As understood, our core text is an Egyptian library and also surely the Atlantean library as well. We start to have laws held out similar in the manner of the first texts of the Hebrew Bible.
The art of metal working remains largely secret and even weaving needs to be taught. Thus we are describing the early days of the rise of organized communities.
I do think that the Hebrew Bible was fully written after their return from Babylon and that prior texts were mostly copied from Egyptian sources. I also suspect heavy editing in order to establish the primacy of the Israelite and the one GOD. Yet they did not stray far from what is accepted text either.
[ interesting description of germ threory of STD and a sharp reminder that the underlying basis for the admonition of against what we call free love was the curse of STD - arclein ]