Gunpowder changed how societies fought war with its use in grenades, rifles and cannons. It was invented by the Chinese and was first used on the Mongols to reduce their constant invasions.
Gunpowder was first used as flying fire, where an arrow attached to a tube of gunpowder was ignited and launched into enemy lines. The Chinese invented more weapons that used gunpowder in their conflicts against the Mongols, helping them gain victory in their battles. In the 13th century, during the ancient silk trade, the technique was passed along silk trade routes to Europe where gunpowder cannons became common weapons used during wars.