The cannon is a fantastic siege weapon that can blow holes in walls the trebuchet can’t dent. Cannons are large metal tubes filled with gunpowder and a ball put in the front to get blasted. The hand cannon probably inspired the first cannon. The people most fit to making the cannon were bell making blacksmiths. The bell makers were used to handling large chunks of metal and making it round with a hole at the end. The only differences were the hole for the fuse and it being so much skinnier. The main and effective way the cannon spread was with the use of it on other armies and castles. The attacking side would use it on the defense and the defense would copy it and use it on either another attacker or would try to conquer a different place spreading it even more.
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