#2 – Gunpowder
Chemical explosive, also known as black powder, is a mixture of 3 ingredients – sulphur, charcoal and nitrate. It is widely used in firearms or fireworks.
Myth says that the gunpowder was invented by Taoists who tried to create a potion of immortality. We don’t know if it is true but the first evidence of gunpowder comes from Tang dynasty, which ruled China from 6th to 9th century and the earliest record of a written recipe appeared 2 hundred years later. Zeng Gonglian, Ding Du and Yang Weide wrote the earliest known formulas.
Chinese always focused on outsmarting the opponents and used the gunpowder in bombs that were launched from catapults.