Sign. The Southern Liang Dynasty decided on this name. Set up prisons, be honest and clean, and be in charge of national classics. The secretary supervision system has a long history. Since the Eastern Han Dynasty, it first belonged to Emperor Jinhui Taichang Temple and Yonghui Middle School. At first, it set up an independent secretary temple, and later set up a secretary supervision. Its officials are honest, strong and United. In the first year of Emperor Huidi Yongping, the imperial edict wrote: "The minister knows the classics and has his own position in Chinese books. Although he is far from being in charge, he is not expert in things. It is advisable to set up a secretary's hall again, with three copies at home and abroad. " Naturally, the secretary temple began to open to the outside world. Its official product: Jinling says: "The fifth product is crimson robe, bronze seal, ink ribbon, sage crown and jade." At the beginning of Yuankang, the secretary of Huahua was in charge of time, the hall was the inner desk, the class was the same as the Chinese book, and the level of secretary supervision was upgraded to the third class. The secretary hall was equivalent to the secretary province, and at the same time it held the book province. In the Southern Dynasties, Liang was a secretary province, its chief officer was a secretary supervisor, and there were three official products. Under the supervision, there are officials such as Shao Jian, Cheng, Secretary Lang, Correction Lang and Zhengzi, who are in charge of national history works and national classics. In the Tang Dynasty, it was renamed as "Lantai" and "Lintai". In the early northern song dynasty, the scriptures were returned to the secret pavilion, and the ministers only held memorial tablets. Zongshen Yuanfeng changed the official system and the secretariat was restored. The Lifu, the Council Hall and the National History Museum in the Song Dynasty were all under the jurisdiction of the Secretariat of History, and their scale was larger than that in the Tang Dynasty. The Yuan Dynasty assigned the Ministry to the Hanlin National History Institute. Ming set up imperial academy, so there is no secretary province.