According to the Records of the Grand Historian, the origin of glass is related to the ancient beauty Xi Shi. Late Spring and Autumn Period? Fan Li, known as the God of Wealth in later generations, was responsible for supervising the construction of the Sword of Kings for King Goujian of Yue. On the day Wang Jian was cast, Fan Li discovered a magical powdery substance inside the sword casting mold. After this substance fuses with crystal? Not only crystal clear? And it can produce metallic sounds. Fan Li believed that this substance, after undergoing a hundred trials of intense fire, possessed both the domineering aura of the sword of kings and the delicate aura of crystals. Therefore, he referred to it as the "Sword Way" and presented it to the King of Yue along with the royal sword. The King of Yue was grateful for Fan Li's skill in forging the sword and accepted the sword of the king, returning the "Sword Art" to Fan Li. And bestowed the name "Li" upon "Jiandao" in the name of Fan Li.