From the first lines, Manetho writes:
" At that time, only reigned the Gods, then came the mid-gods and finally, towards - 3100 began the dynasty of the Pharaohs. The divine reigns, he writes, began 10000 years before the Flood and continued thousands of years later, the last period having been the witness of battles and wars between the Gods ".
I guess the Sudanese were their descendants. I also guess most of the heroes in the Pentateuch , the likes of Nimrod, and others that were described as ‘the renowned men of the old’ walikuwa hii sampuli.
Cain was a demigod same with the sons of Jacob.