Shi Yu was the official name of China in ancient times. In the pre-Qin period, emperors, princes, doctors and city stewards all set "Shi" as a historian and a minister in charge of records. The monarch accepted the proposal. Since the Qin Dynasty, Shi Yu has been a supervisory official, in charge of supervising the imperial court and vassal officials until the Qing Dynasty.

The imperial history of the Han Dynasty was unified under the leadership of the imperial history platform, which was divided into imperial history and imperial history. Before the secretariat of the Eastern Han Dynasty was changed to state grazing, the secretariat of the Han Dynasty was also a supervisor and a kind of suggestion.

Extended data

Imperial responsibility:

1, responsible for supervising the dereliction of duty and illegal acts of the imperial court and vassal officials, and also responsible for keeping the archives of the imperial court.

2. The suggestion also sends temporary suggestions from time to time to supervise important affairs such as commissary supply, river course restoration, agricultural production and market order.

Because the censor has the right to supervise, the general officials are afraid of him. When the prime minister is vacant, the imperial doctor often takes over. Yushi works in Yushitai, assisted by Yuchi Zhongcheng (from the second level), and is in charge of judicial Yushi and judicial cases.

Baidu Encyclopedia: Imperial History