Well the best time to invent your god is before large civilisations develop. That way you can almost have one per family. Maybe village. What you need is isolation and ignorance if you want lots.
Men rarely (if ever) manage to dream up a God superior to themselves. Most Gods have the manners and morals of a spoiled child.
Robert A. Heinlein
Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.
Belief gets in the way of learning--Robert A. Heinlein
In the name of diversity, college student demands to be kept in ignorance of the culture that made diversity a value--StultisTheFool
It's not what we don't know that hurts, it's what we know that ain't so--Will Rogers
If I am entitled to something, someone else is obliged to pay--Jerry Pournelle
If a religion's teachings are true, then it should have nothing to fear from science...--dwise1
"Multiculturalism" demands that the US be tolerant of everything except its own past, culture, traditions, and identity.