It is so fucking frustrating that I can't do in-universe research on fictional subjects

Thanagar having a set of archaic gods who were replaced by the current (?) set of seven gods and seven devils, the possible connection to the seven cosmic beings of the Emotional Spectrum, the fact that Krypton had polytheistic religions (with birdlike deities??) before Raoism became widespread, the probably-retconned-away fact that Thanagar and Krypton were ancient Atlantean space colonies...

There is an essay hiding in here but I don't have the academic resources to write it because they don't exist and it keeps me up at night