Gunpowder                                  

         Gunpowder was invented by the Chinese.  The French invented gunpowder, which would prevent smoke. Guns

Since the late nineteenth century guns have been muzzle loaded or dropped into the gun.  When the powder has been ignited, it is called flintlock musket.  Chinese cannons first appeared in the thirteenth century.  Breech loaded means that the ammo is put in the firing chamber at the other end of the gun from the muzzle.  Artillery is small arms like rifles, pistols, cannons and mortars.  Naval cannons were used in European battleships in 1346.

                                                Atomic  Bomb          

 In 1945 the first atomic bombs were tested.  The scientists were so frightened, they banned nuclear weapons.