Meng Huo You

is the name given to

petroleum Petroleum, also known as crude oil or simply oil, is a naturally occurring, yellowish-black liquid chemical mixture found in geological formations, consisting mainly of hydrocarbons. The term ''petroleum'' refers both to naturally occurring un ...

ancient China The history of China spans several millennia across a wide geographical area. Each region now considered part of the Chinese world has experienced periods of unity, fracture, prosperity, and strife. Chinese civilization first emerged in the Y ...

, which practiced the use of petroleum as an

incendiary weapon Incendiary weapons, incendiary devices, incendiary munitions, or incendiary bombs are weapons designed to start fires. They may destroy structures or sensitive equipment using fire, and sometimes operate as anti-personnel weaponry. Incendiarie ...

in warfare.

Historical records of petroleum

During the

Eastern Han dynasty The Han dynasty was an Dynasties of China, imperial dynasty of China (202 BC9 AD, 25–220 AD) established by Liu Bang and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–206 BC ...

, the Chinese historian and poet

Ban Gu Ban Gu (AD32–92) was a Chinese historian, poet, and politician best known for his part in compiling the ''Book of Han'', the second of China's 24 dynastic histories. He also wrote a number of '' fu'', a major literary form, part prose ...

recorded in the geography section of his ''

Book of Han The ''Book of Han'' is a history of China finished in 111 CE, covering the Western, or Former Han dynasty from the first emperor in 206 BCE to the fall of Wang Mang in 23 CE. The work was composed by Ban Gu (32–92 CE), ...

'' that a flammable liquid substance are found in the Gao Nu County, located in the northeast portion of present-day

Shaanxi Province Shaanxi is a province in north Northwestern China. It borders the province-level divisions of Inner Mongolia to the north; Shanxi and Henan to the east; Hubei, Chongqing, and Sichuan to the south; and Gansu and Ningxia to the west. Shaanxi ...

. This "flammable liquid" was likely petroleum that had seeped through the ground and was floating above the local waters. Four hundred years later, during the late stages of

Southern and Northern dynasties The Northern and Southern dynasties () was a period of political division in the history of China that lasted from 420 to 589, following the tumultuous era of the Sixteen Kingdoms and the Eastern Jin dynasty. It is sometimes considered as ...

, historian Fan Ye cited in the ''

Book of Later Han The ''Book of the Later Han'', also known as the ''History of the Later Han'' and by its Chinese name ''Hou Hanshu'' (), is one of the Twenty-Four Histories and covers the history of the Han dynasty from 6 to 189 CE, a period known as the Late ...

'' that the collection and exploitation of petroleum had been around for some time: This "stone-lacquer" is likely petroleum. There are similar records from the Jin and

Northern Wei Wei (), known in historiography as the Northern Wei ( zh, c=北魏, p=Běi Wèi), Tuoba Wei ( zh, c=拓跋魏, p=Tuòbá Wèi), Yuan Wei ( zh, c=元魏, p=Yuán Wèi) and Later Wei ( zh, t=後魏, p=Hòu Wèi), was an Dynasties of China, impe ...

dynasties as well. The earliest mention of "rock oil" (石油), the Chinese name for petroleum, is by a book "Grand Peace Records" from the

Northern 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 ...

, and officially designated the current name by Song dynasty polymath scientist

Shen Kuo Shen Kuo (; 1031–1095) or Shen Gua, courtesy name Cunzhong (存中) and Art name#China, pseudonym Mengqi (now usually given as Mengxi) Weng (夢溪翁),Yao (2003), 544. was a Chinese polymath, scientist, and statesman of the Song dynasty (960� ...

using the description found in his famous book ''

Dream Pool Essays ''The Dream Pool Essays'' (or ''Dream Torrent Essays'') was an extensive book written by the Chinese polymath and statesman Shen Kuo (1031–1095), published in 1088 during the Song dynasty (960–1279) of China. Shen compiled this encyclopedi ...

''. Due to the chemical characteristics of petroleum that it continues to burn in water, it was widely used by feudal militaries. Some examples include the defense of the city of

Jiuquan Jiuquan, formerly known as Suzhou is a prefecture-level city in the northwesternmost part of Gansu Province in the People's Republic of China. It is more than wide from east to west, occupying , although its built-up area is mostly located in it ...

Gansu Gansu is a provinces of China, province in Northwestern China. Its capital and largest city is Lanzhou, in the southeastern part of the province. The seventh-largest administrative district by area at , Gansu lies between the Tibetan Plateau, Ti ...

Province in the year 578 against the invading Göktürk army, in which the defenders used petroleum to ignite and destroy the

siege engine A siege engine is a device that is designed to break or circumvent heavy castle doors, thick city walls and other fortifications in siege warfare. Some are immobile, constructed in place to attack enemy fortifications from a distance, while othe ...

s brought in by the invaders.

Practice and proliferation of Meng Huo You

In ancient China, the use of petroleum in warfare was the most effective during the Five Dynasties and Ten Kingdoms period and the following four major dynasties and powers from

Song A song is a musical composition performed by the human voice. The voice often carries the melody (a series of distinct and fixed pitches) using patterns of sound and silence. Songs have a structure, such as the common ABA form, and are usu ...

through to Yuan, including the Jin and Liao dynasties. During this time a small dynasty in

Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...

paid tribute to the Chinese emperor with petroleum. Before this time, fire attacks were limited to burning wood or animal fat; using petroleum greatly increased the potency of fire attacks, and the fact that trying to douse the burning petroleum with water will only spread the fire more rapidly made burning oil an ideal weapon for destroying cities filled with wooden structures. Meng Huo You is in many ways similar to the use of

Greek fire Greek fire was an incendiary weapon system used by the Byzantine Empire from the seventh to the fourteenth centuries. The recipe for Greek fire was a closely-guarded state secret; historians have variously speculated that it was based on saltp ...

. The devices used for the Chinese weapons had propelling systems as well. One of the key differences between the two weapons is the use of

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 ...

as the ignition in the Chinese design.

Decline

The Chinese continued to use the oil as a way of repelling nomadic invaders from the northwest. However, by the Ming and

Qing The Qing dynasty ( ), officially the Great Qing, was a Manchu-led Dynasties of China, imperial dynasty of China and an early modern empire in East Asia. The last imperial dynasty in Chinese history, the Qing dynasty was preceded by the ...

dynasties, the newly mature technology of gunpowder had for the most part replaced the use of these short-range

flamethrower A flamethrower is a ranged incendiary device designed to project a controllable jet of fire. First deployed by the Byzantine Empire in the 7th century AD, flamethrowers saw use in modern times during World War I, and more widely in World W ...

s, which saw little mention in the historical records of the last dynasties of

imperial China The history of China spans several millennia across a wide geographical area. Each region now considered part of the Chinese world has experienced periods of unity, fracture, prosperity, and strife. Chinese civilization first emerged in the Y ...

External links

最早的火焰喷射器--猛火油柜
Chinese military museum's website illustrating the earliest flame throwers. {{Ancient and Dynastic Chinese Military History Flamethrowers Chinese inventions Military history of the Han dynasty Medieval weapons Petroleum Weapons of China