This is the classic go-to article whenever this sort of thing comes up, but I just can't resist its siren song:
Sumerians Look On In Confusion As God Creates World
Sumerians Look On In Confusion As God Creates World
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'