"Bachelor" was an official in charge of literary works in the Tang Dynasty. If the prime minister is in charge of "bachelor", the prime minister is called "scholar" In the Song Dynasty, people with high expectations in The Bachelor were called "great scholars". In the Ming dynasty, there were a group of college students who were authorized to play for the emperor. They were responsible for government affairs and official ranks. If you are a minister and assistant minister at the same time, you can add an official to one product and become a de facto prime minister, commonly known as "Ge Lao". University students in the Qing Dynasty were the chief officials of the cabinet, and their rank was just a product, which was generally called "main hall".