The Sky God Was Not A Delusion

[Aoi Magi]

There might have been a big cosmological event in the past that made it's way in some of the major religions today, but that certainly is not what started religion. Religion is born out of ignorance and the need for us to feel in control of things. Superstition is a common occurrence in the animal kingdom as demonstrated in the pigeon experiment, that combined with human intellect was bound to lead to religion, irrespective of a big cosmological event.

Religion spreads by adapting and exploiting gaps of knowledge, and it is a common occurrence for one religion to *borrow* ideas from other religions, so given enough time it's not hard to see how the major religions might share different versions of a common story, that however doesn't do much towards adding credibility to the actual event. Nor will knowing that prevent new religions from popping up in the future.