William Cooper Mystery Babylon series: https://www.youtube.com/playlist?list=PL11E33A6AEEB2674F

Zeitgeist Refuted: https://youtu.be/JFI6m6Icav4

Mystery Schools:

https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/egyptian-mystery-schools

https://ancientegyptmysteryschools.com/what-is-a-mystery-school-initiati ...