[smokel]

I don't fully understand the point you are trying to make, and how science plays a role in this discussion.

Apart from this diversion, I do think people heard about other gods alright, but communities used to be quite isolated. It has been possible to collectively ignore other religions for centuries. Technological developments in transport and information distribution, such as the printing press, may have made it increasingly harder to keep a lid on the group think. Seems like a reasonable argument, no?