How long until guns and cannons enter Westeros? stevenattewell Uncategorized March 8, 2017 1 Minute Given that fireworks don’t seem to exist in Planetos, I’m guessing a long while. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Related Published by stevenattewell View all posts by stevenattewell Published March 8, 2017