Ying Zheng ruled the country and was called the first emperor. Li Si was ordered to seal the script with the words "I was ordered by heaven to live forever", and the King of Jade Works in Xianyang carved Sun Shou and Shi Bi into a seal, four inches long, and went to New Zealand to make five dragons. This is the official seal.
The imperial seal refers to the special seal of the ancient emperor, representing supreme rights. The use of the imperial seal began in the Qin Shihuang period. Before the Zhou Dynasty, seals and seals were collectively called seals and made of gold or jade.
It was not until the Zhou Dynasty that there was a distinction between seal and seal. Only seals used by emperors can be called seals, while seals used by ordinary subjects can only be called seals. Under the seal used by the emperor, there are eight big characters engraved, which are ordered by God to live forever. It was recorded in the Han Dynasty that the inscription at the bottom of the jade seal was longevity of Emperor Haotian. Although the records of the two are different, they generally refer to the statement that he was instructed by Tianshou Yongchang.