So I'm still world building (and having fun doing it). In a brilliant flash of insight I realized that I did not have religion integrated into the societies I was working on, and that a large gaping hole in my characters' motivation - their religious and political beliefs - needed to be fixed. Currently I'm using what I know about European societies (and some far eastern influences) as a template for the ones I create. Religion has been neglected entirely and I think involving it would greatly enhance the depth of my characters. So I kind of want to do some research on Roman and Greek Pantheons alongside Celtic, Germanic, and Gallic religious practices. I don't know where to start reading that would be comprehensive. Does anyone have any recommendations? Edit: While I'm at it, what about Mayan and Incan stuff? Pile it on!