Gunpowder
The
invention of gunpowder had a close relationship with the
advanced ancient workmanship of smelting industry. People began to know a lot of
chemistry knowledge about the nature of different mineral materials during the
process of smelting operation. With the knowledge, ancient necromancers tried to
seek the elixir of immortality from certain kinds of ores and fuel. Although
they failed to get what they were looking for, they discovered that an explosive
mixture could be produced by combining sulfur, charcoal, and saltpeter
(potassium nitrate). This mixture finally led to the invention of gunpowder
although its exact date of invention still remains unknown.
Many historical materials indicate that gunpowder first appeared before the
Tang
Dynasty (618-907). From 300 to 650AD several recipes were written about
inflammable mixtures. Some historians date the invention of gunpowder at 850AD
when a Taoist book warned of three specific elixir formulas as too dangerous to
experiment.
The military applications of gunpowder began in the Tang
Dynasty . Explosive
bombs filled with gunpowder and fired from catapults were used in wars. During
the Song and Yuan dynasties (960-1368), the military applications of gunpowder
became common and some other weapons like "fire cannon", "rocket", "missile" and
"fireball" were introduced.
In the Yuan
Dynasty (1279-1368), the method of powder-making was introduced to the Arab
world and Europe, bringing a series of revolutions to weapon manufacturing, as
well as to stratagem and tactics on the battlefield. From Italy the making of
gunpowder soon spread to other European countries, and by the 1350s it had
become an effective weapon on the battlefield.
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