According to ancient records, the word "rocket" first appeared in the Three Kingdoms period in the 3rd century A.D., with a history of 1700 years. At that time, in the battle between the enemy and ourselves, people called the arrow with flammable materials on its head an arrow, which was ignited and fired at the enemy, called a rocket. This is a weapon for fire attack. In essence, it is just an arrow with "fire", which is far from what we call a rocket now. After the invention of gunpowder in the Tang Dynasty, in the Song Dynasty, people tied a barrel full of gunpowder to an arrow shaft, or put gunpowder in the arrow shaft, lit the fuse, and then fired it. The arrow flies farther with the reaction force to the backward fire generated by the burning of gunpowder in flight. People call this kind of jet rocket a rocket. This kind of arrow, which spits fire backwards and is boosted by reaction force, has the embryonic form of a modern rocket and can be called the original solid rocket. China Ming Dynasty: The invention of Wan Hu rocket first appeared in China. In China's ancient records, the meaning of rocket is relatively broad. 1 128 After the establishment of the Southern Song Dynasty regime, there were frequent wars in the Southern Song Dynasty, Jin Dynasty and Mongolia, and all parties used firearms. 1 16 1 year 1 1 month, when the state of Jin invaded the Central Plains, the army of the Southern Song Dynasty used a rocket weapon-"thunderbolt gun" to defeat the Jin army for the first time, which was the first time in human history to use a rocket weapon on the battlefield.