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Wujing Zongyao

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The Wujing Zongyao is a massive Chinese military compendium. Its English name is the Complete Essentials for the Military Classics. It was compiled during the Northern Song dynasty between 1040 and 1044. This book served as a central collection of all known military knowledge. It was designed to teach government officials about defense and strategy.

Renzong
Renzong

Because it contained sensitive information, it was treated with great secrecy. Only a few trusted government officials were allowed to read it. This was to prevent military secrets from falling into enemy hands.

The creation of the book was a massive government project. Emperor Renzong of Song sponsored the work. He was concerned that many officials lacked knowledge of military classics. He also wanted to prepare for wars with the Tanguts of Western Xia. A team of scholars worked for five years to complete the text. The chief editor was Zeng Gongliang, a government official. He was assisted by the scholar Ding Du and the astronomer Yang Weide.

Renzong
Renzong

Emperor Renzong even wrote the book's preface.

The compendium covers a wide variety of military technology. It includes detailed descriptions of naval warships and large catapults. One notable feature is the earliest known written chemical formulas for gunpowder. The text provides three specific formulas for different uses. One was for explosive bombs launched from a trebuchet. Another was for incendiary bombs with hooks to catch wooden structures. The third formula was for a poison-smoke bomb used for chemical warfare.

Chinese Gunpowder Formula
Chinese Gunpowder Formula

Making gunpowder required a specific chemical process. The formulas used saltpeter, sulphur, and charcoal. They also included ingredients like pitch and dried lacquer. To make the mixture, workers first powdered and mixed the main ingredients. Then, they mixed tung oil, dried plants, and wax to create a paste. This paste was combined with the powder and stirred carefully. Finally, the mixture was placed in paper containers. These were wrapped and tied with hemp twine to prevent dampness.

Thunderclap bomb
Thunderclap bomb

The book also describes many different gunpowder weapons. It mentions fire arrows that were launched from bows or crossbows. It details incendiary projectiles like the "swallow-tail" and "flying" types. These were often lowered from city walls to set fire to enemy wooden structures. The text also describes the huoqiu, or fire ball. These were launched using a trebuchet to start fires in invading armies. Some weapons, like the thunderclap bomb, used bamboo containers to hold expanding gases. This allowed for more powerful explosions.

武经总要 火球图
武经总要 火球图

Beyond gunpowder, the Wujing Zongyao records other important inventions. It describes an early form of the compass called a "south pointing fish." This was a piece of heated iron or steel shaped like a fish. It was suspended in a bowl of water to help with navigation. The book also contains the oldest illustration of a Chinese flamethrower. This device used a double-action dual-piston cylinder-pump. This pump allowed the operator to shoot a continuous blast of flame.

武经总要 曾公亮和丁度 宋朝 二 35
武经总要 曾公亮和丁度 宋朝 二 35

The book's influence on naval history was very significant. It divided Chinese warships into six specific categories. These included Tower ships, combat junks, and sea hawk ships. This system of classification reappeared in later naval texts for many centuries. Even Japanese naval texts used illustrations from the Wujing Zongyao until the 18th century.

HKSM 香港太空館 Hong Kong Space Museum 指南針 compass Jan-2013
HKSM 香港太空館 Hong Kong Space Museum 指南針 compass Jan-2013

The book's impact on maritime studies helped shape how ships were documented for hundreds of years.

History shows that the original Wujing Zongyao was difficult to preserve. The original text was kept in the Imperial Library. However, it was lost during the Jin–Song wars in 1126. This happened when the invading Jurchens sacked the capital of Kaifeng. Despite this loss, several copies survived through different eras. A new edition was made in 1231 during the Southern Song dynasty. The most reliable version is the 1510 edition from the Ming dynasty. This version was printed from blocks re-carved from 1231 tracings. This ensured the text remained faithful to the original ancient knowledge.

653 words

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🖼️ Images & Media (6)
File:Chinese Gunpowder Formula.JPG
Chinese Gunpowder Formula.JPG
File:Renzong.jpg
Renzong.jpg
File:HKSM 香港太空館 Hong Kong Space Museum 指南針 compass Jan-2013.JPG
HKSM 香港太空館 Hong Kong Space Museum 指南針...
File:武经总要 火球图.jpg
武经总要 火球图.jpg
File:Thunderclap bomb.jpg
Thunderclap bomb.jpg
File:武经总要 曾公亮和丁度 宋朝 二 35.jpg
武经总要 曾公亮和丁度 宋朝 二 35.jpg
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