That is why most of people confuse the time of this previous alien presence with the time of these accounts. It is as if people would say that the Romans still exist because Wikipedia talks about them.

So, for about 2,000 years, the first 2,000 years of the new GOD's cycle, the former religion was based on the disappeared Annunaki, and even Reptilian deities, some descendants of which remained on earth. That is why Yahweh wanted to get rid of those former gods due to their wrong behaviors and goals, and insisted so much on the four first of the 10 Commandments, related to His worship, for HE IS THE ONLY TRUE GOD. Why ?

Because His Plan is to make humans like the other gods, unlike the latter's purpose. That's why He said, about this new humanity, to other selected 'gods' : 'make them at our image'.

Here, 'image' is not only the way we look like (humanity already looked like the Annunaki), but most importantly, is the spark of INTELLIGENCE, hence the appearance of Mathematics and Writings from 4,000 BC.