The musket is the most primitive tubular firearm. On its basis, after hundreds of years of development, modern guns and cannons have appeared, so they are considered to be the ancestors of guns.

So when did China invent the musket? In the past, the traditional view was represented by The Discovery and Spread of Gunpowder published by Mr. Feng Jiasheng 1947, and it was believed that muskets were first used in Song Dynasty1Kloc-0/32 (the second year of Shaoxing in the Southern Song Dynasty) in De 'an, Hubei Province (now Anlu, Hubei Province) to resist the siege of the Jin Army. This statement has been used by people for many years. 198 1 in August, 2008, at the 16 international conference on the history of science held in Bucharest, the famous British scholars Dr. Joseph Needham and Dr. Lu Guizhen jointly published a paper, A New History of Gunpowder and Firearms in the Cultural Field of China, in which they put forward a new view on the discovery time of muskets, and thought that it is necessary to push the invention of muskets forward for 200 years now. Prior to this, Dr. Needham showed this painting in a speech in China. This painting about Buddhism is completely preserved in the Tibetan Sutra Cave in Dunhuang Mogao Grottoes, and was plundered by French pelliot in the early 20th century. As for the reason and time of the closure of the Tibetan Sutra Cave, the academic circles unanimously believe that it was closed at the beginning of 1 1 century to avoid war, and the last paper in the cave was written in 1002 (the fifth year of Xianping in the Northern Song Dynasty).

Therefore, the latest age of this painting based on Dr. Needham is also 1 1 the beginning of the century, which is more than 100 years earlier than the rigid record of using muskets.