The Battle of Tangdao (唐岛之战) was a naval engagement that took place in 1161 between the Jurchen Jin and the

Southern Song dynasty The Song dynasty ( ) was an imperial dynasty of China that ruled from 960 to 1279. The dynasty was founded by Emperor Taizu of Song, who usurped the throne of the Later Zhou dynasty and went on to conquer the rest of the Ten Kingdoms, endin ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

on the East China Sea. The conflict was part of the Jin-Song wars, and was fought near Tangdao Island. It was an attempt by the Jin to invade and conquer the Southern Song dynasty, yet resulted in failure and defeat for the Jurchens. The Jin dynasty navy was set on fire by ''huopao'' (a type of gunpowder weapon, possibly

cannons A cannon is a large-caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during t ...

) and fire arrows, suffering heavy losses. For this battle, the commander of the Song dynasty squadron, Li Bao, faced the opposing commander Zheng Jia, the admiral of the Jin dynasty. On the fate of Zheng Jia, the historical text of the ''Jin Shi'' states: This battle was followed by another naval confrontation, the

Battle of Caishi The Battle of Caishi () was a major naval engagement of the Jin–Song Wars of China that took place on November 26–27, 1161. It ended with a decisive Song victory, aided by their use of gunpowder weapons. Soldiers under the command of Wan ...

(采石之战) taking place in 1161. The battle is significant in the technological history of the Song navy. The 20th-century historian

Joseph Needham Noel Joseph Terence Montgomery Needham (; 9 December 1900 – 24 March 1995) was a British biochemist, historian of science and sinologist known for his scientific research and writing on the history of Chinese science and technology, initia ...

has called the era "one of continual innovation" when the size of the Song fleet grew "from a total of 11 squadrons and 3,000 men he Song navyrose in one century to 20 squadrons totalling 52,000 men, with its main base near

Shanghai Shanghai, Shanghainese: , Standard Chinese pronunciation: is a direct-administered municipality and the most populous urban area in China. The city is located on the Chinese shoreline on the southern estuary of the Yangtze River, with the ...

." They were further reinforced by the aid of seafaring Chinese merchants. The technological gains of the Song navy ensured its access and dominance of the East China Sea for centuries in competition with the military forces of Jurchen and Mongol rivals. By 1129, the Song navy had invented

gunpowder Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur, charcoal (which is mostly carbon), and potassium nitrate, potassium ni ...

bombs for warship

trebuchet A trebuchet () is a type of catapult that uses a hinged arm with a sling attached to the tip to launch a projectile. It was a common powerful siege engine until the advent of gunpowder. The design of a trebuchet allows it to launch projectiles ...

s. The weapon was made mandatory for all ships in the Song fleet. The construction of paddle-wheel ships, operated with treadmills, went on for several decades between 1132 and 1183. The engineer Gao Xuan devised a paddle-wheel ship outfitted with up to eleven paddle-wheels on each side. Iron plating for armoring the ships was designed in 1203 by the engineer Qin Shifu.

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* * * * {{Song dynasty topics Tangdao Tangdao Tangdao Tangdao 1161 in Asia 12th century in China Tangdao

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