I did a detailed analysis of Adrenochrome usage and human sacrifices throughout time, starting with prehistory and working into Egypt, Phoenicia, Greece and beyond
It's pretty cool. I figured it had to be done. I can't find anything else like it.
In many cases, yes. The emulation of Vrykolatios, for instance was very prevalent. People pretended to be him, or Lamia. And of course there's the Atzec situation. Foreigners of unknown origin, possibly nephalim took over city states and acted like gods.
Probably lots of other examples