2. Mandarin, also known as Chunqiu Biography or Zuo Family Biography. Legend has it that it was written by Lu Zuo Qiuming at the end of the Spring and Autumn Period, but modern scholars believe that it was compiled and edited by scholars of the Warring States according to the original data recorded by historians of various countries in the Spring and Autumn Period;
2. The word patent was first seen in Putonghua in China. Dr. Rui Fuliang of the Western Zhou Dynasty put forward: "People's patents are still called thieves, and they are fresh when they are done." "The patent here refers to violence through monopoly.