Chinese alchemists worked with primitive methods and experimented a lot, until, accidental events led them to a new discovery, which later turned the entire world. It was a particular mixture of sulfur, charcoal and salpeter (potassium nitrate), which later was known as gunpowder. Mixed in measured doses, it created an especially explosive effect.
Around the 11th century B.C., gunpowder began to be used for military purposes. It was used as an explosive substance, as well as for cannon and flintlock charging.
Gunpowder is very sensitive to moisture, so the soldiers always wore special bags. Through a narrow opening which could then capped, gunpowder was poured directly into the gun’s barrel opening.