1, horseshoe was first invented by the ancient Romans around the first century BC, and the earliest record of horseshoe in China was probably around the Five Dynasties. In the third year of Tianfu at the end of Jin Dynasty (AD 938), Zhangwu was sent to Khotan and began to enter the vast Gobi from Ganzhou (now Zhangye, Gansu). Looking ahead, the road is full of sand and gravel, which is very difficult to walk.

2. At this time, Ganzhou people taught them a technique, "It is feasible to teach the Golden Messenger to make a four-hole horseshoe, and the horseshoe also chisels four holes, and the camel's hoof is wrapped in yak skin." "Wood astringency" was a general term for horseshoes by northern nationalities at that time.

3. It can be seen that Ganzhou Uighur, who was in Hexi Corridor at that time, had mastered the technology of nailing horses. But it was not widely used in the Central Plains until the Yuan Dynasty.

4. horseshoe, also known as horseshoe, is an iron hoof nailed to the hoof by animals such as horses and cows. Horseshoe consists of two layers. The first layer in contact with the ground is a hard stratum corneum about 2-3 cm thick, and the upper layer is a living stratum corneum. Horseshoe comes into contact with the ground, and will fall off quickly due to the friction of the ground and the corrosion of accumulated water. The main purpose of nailing horseshoes is to delay the wear of horseshoes.

5. The use of horseshoe not only protects horseshoe, but also makes horseshoe hold the ground more firmly, which is beneficial to riding and driving. Horseshoe may be an innovation of the Romans, and it is very common in the ruins of BC 1 century. Catullus (about 85-54 BC) mentioned that a mule lost a shoe.