The Heilongjiang hand cannon or hand-gun is a bronze hand cannon manufactured no later than 1288 and is the world's oldest confirmed surviving firearm. It weighs 3.55 kg (7.83 pounds) and is 34 centimeters (13.4 inches) long. The Heilongjiang hand cannon was excavated during the 1970s in Banlachengzi, a village in Acheng District, Heilongjiang province, China. It was found alongside other bronze artifacts made in the style of the Jurchen Jin Dynasty (12th–13th century). The hand cannon was probably used in battles fought nearby in Banlachengzi in 1287 and 1288. The History of Yuan states that a Jurchen commander by the name of Li Ting led a group of soldiers equipped with hand cannons into a military camp in 1288, as part of an anti-rebellion campaign for the Yuan dynasty. The cannon currently resides at the Heilongjiang Provincial Museum in Harbin, China.
Description The Heilongjiang hand cannon is 34 centimeters (13.4 in) long without a handle and weighs 3.55 kg (7.83 pounds). The diameter of the interior at the end of the barrel is 2.6 cm (1.02 inches). The barrel is the lengthiest part of the hand cannon and is 17.5 cm (6.9 inches) long. There is no inscription on the hand cannon. The hand cannon has a bulbous base at the breech called the yaoshi (藥室) or gunpowder chamber, where the explosion that propels the projectile occurs. The diameter of the Heilongjiang hand-guns powder chamber is 6.6 cm (2.6 inches). The walls of the powder chamber are noticeably thicker to better withstand the explosive pressure of the gunpowder. The powder chamber also has a touch hole, a small hole for the fuse that ignites the gunpowder. Behind the gunpowder chamber is a socket shaped like a trumpet where the handle of the hand cannon is inserted. The bulbous shape of the base gave the earliest Chinese and Western cannons a vase-like or pear-like appearance, which gradually disappeared when advancements in metallurgical technology made the bulbous base obsolete.
Historical context
Gunpowder was invented in China during the 9th century. One of the first references to gunpowder occurs in the Taoist alchemical text known as Zhenyuan miaodao yaolüe (真元妙道要略), composed during the mid-800s, containing a passage mentioning the use of gunpowder. By the 12th century, Song dynasty forces were utilizing gunpowder weapons such as fire lances, grenades, and metal bombards. Exploding gunpowder bombs were used as early as 1126 during the Jingkang Incident, when the Jurchen Jin dynasty besieged the Song capital of Kaifeng. The Song defenders launched explosive bombs called pili pao (霹雳炮) at the besiegers. The predecessor of the hand cannon, the fire lance, was a spear tied with a bamboo or paper barrel that could fire projectiles. The transition between the fire lance to the cannon or hand cannon was gradual, so literary references to a weapon called huotong (火筒; "fire tube") can either denote fire lances or metal-barrel firearms. The Xingjun Xuzhi (行軍須知; "What an Army Commander in the Field ought to Know") dated 1230, lists huotong among other gunpowder weapons, but may refer to either a fire lance or a hand cannon. This has been attested to by surviving metal cannons and hand cannons in China from the 13th and 14th centuries. The oldest among the excavated cannons is the Wuwei cannon dated to 1227. It was discovered in Wuwei, Gansu and likely originates from the Western Xia period. The Wuwei cannon weighs 108.5 kilograms (239 pounds), a diameter of 12 centimeters (4.7 inches), and a length of 1 meter (3 feet 3+3⁄8 inches). An iron cannonball and a small quantity of gunpowder were also discovered at the Wuwei archaeological site. The earliest cannon inscribed with a date of manufacture is a bronze cannon. It is dated to 1298 according to an inscription in the 'Phags-pa script. Outside of archaeological finds, appearances of the cannon in Chinese art may suggest that the cannon was invented as early as the 12th century. The oldest artistic representation of a cannon is a stone relief sculpture dated to 1128. The sculpture was discovered in 1985 carved in the walls of Cave 149 of the Dazu Rock Carvings in Dazu, Chongqing. The Heilongjiang hand-gun is dated to 1288. At 3.55 kg (7.83 pounds) and is considerably lighter than older projectile devices such as the bulky trebuchets that were used to launch explosive bombs. Since the earliest textual reference to a "huo chong," or "fire tube," is dated to 1230 and the oldest surviving hand cannon is dated to 1288, the invention of the hand cannon likely occurred in the mid-13th century. The invention of the metal-barrel hand cannon in China did not diminish the popularity of the earlier bamboo-barrel fire lances. The fire lance was cheaper and more portable than the hand cannon and was still used in China until the 16th century when the musket replaced the fire lance.
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