Gunpowder is one of the four great inventions in China, and it is a great pioneering work of China people's ancestors in science.

As early as around 950 AD, China used primitive rockets powered by gunpowder. On this basis, the stone cannon was later invented. At that time, the stone cannon just cut a round hole in the center of the hard stone pier, filled the hole with gunpowder, filled the hole with pebbles, and then fired them at each other. This is the earliest cannon in the world.

With the appearance of gunpowder, various weapons using gunpowder finally appeared one after another, so shotguns appeared.