Artillery in the Middle Ages primarily consisted of the introduction of the cannon, large tubular firearms designed to fire a heavy projectile over a long distance. Guns, bombs, rockets and cannons were first invented in China during the Han Chinese Song Dynasty and then later spread to Europe and the Middle East during the period.
Although gunpowder was known in Europe during the High Middle Ages due to the usage of guns and explosives by the Mongols and the Chinese firearms experts employed by the Mongols as mercenaries during the Mongol conquests of Europe, it was not until the Late Middle Ages that European versions of cannons were widely developed. The first cannons introduced into Europe were probably used in Iberia, during the Christian wars against Muslims in the 13th century; their use was also first documented in the Middle East around this time. English cannons first appeared in 1327, and later saw more general use during the Hundred Years' War, when primitive cannons were engaged at the Battle of Crécy in 1346. By the end of the 14th century, the use of cannons was also recorded in Russia, Byzantium and the Ottoman Empire.