Where is the world's first knife cast in China?

The first sword in the world is really hard to say, but the origin of the first sword in the world is Longquan City, Zhejiang Province, where the ancient sword casting master Ou Yezi's sword casting pool is located, and the famous Longquan Seven-Star Sword was produced here. Longquan Sword, formerly known as Longyuan Sword, is one of the eight world-famous wild swords cast by Ou Yezi and his son-in-law. Although swords are made here, they are actually knives.

Longquan was called Jianchuan and Long Yuan in ancient times, but it was changed to Longquan in the Tang Dynasty to avoid Ethan.

Some people say that the best sword in the world is in Qingyuan, but it is actually a mistake. Qingyuan is next to Longquan, and ancient Qingyuan belongs to Longquan. Some people regard Qingyuan as Longquan. But the actual Longquan sword pool and site are in Longquan city, not in qingyuan county. Jianchi Valley in Jin Yong's novels refers to Jianchi Lake (also called Jianyuan) in Longquan. Besides swords, celadon and mushrooms originated in Longquan. Longquan celadon's Ge Kiln is also known as one of the five kilns.