Heh, I did say "seem." I haven't seen it happen, but I don't leave them sitting in cities all THAT much, so I knew my data were sparse.

Anyone got a theory on how hereticism originates? I know it breeds itself, but can it appear from a region with pure religion? Or does it take a mix? Or does it actually require some hereticism as seed? Don't think I've ever had it appear anywhere except where there was some little seed, but haven't watched closely so far.