Hiya Gary! I have a question that I'm sure has been asked before, but I figured I'd ask again.
In your original vision for Greyhawk, did gunpowder work? If you had projected ahead in Greyhawk's history, and worked on a campaign along the lines of something like the "Greyhawk 2000" article from Dragon a couple years back, would gunpowder be readily manufactured? Is there anything that would prevent gunpowder from being made, or if it was made, anything that would keep it from being combustible, at least combustible enough to prevent its use in firearms?