How was gunpowder invented? Please talk about its use.

The invention of gunpowder was not discovered and manufactured by one person in a short time. It originated from alchemy in ancient China. In the process of the invention of gunpowder, alchemists played a particularly important role. The earliest gunpowder used by mankind is black gunpowder, which was invented by working people in our country more than 1000 years ago. Its invention is world-famous, known as one of the four great inventions of ancient science and technology in China, and occupies an important position in the history of chemistry.

After the invention of gunpowder, on the one hand, it was used in daily life and production activities, such as fireworks made in the Southern Song Dynasty and festival discharge; Daily production has used gunpowder to cut mountains, mine and build roads. Rockets, artillery and muskets are widely used in the military. /kloc-in the 3rd century, with Genghis Khan's westward expedition to Central Asia, gunpowder first spread to Arabia and then to Europe. The spread of gunpowder in the world first led to the appearance of firearms and a fierce military revolution, which promoted the birth of a new nation-state. Under the influence of geopolitics, the political and economic changes in many countries were triggered, which became the forerunner of the social revolution in Europe and led to the end of the Middle Ages in Europe. When Europeans who entered modernization opened the door of the closed-door feudal Qing Dynasty with warships and cannons, the bell of China's modernization reform immediately rang.