Lagerstroemia speciosa became the official secretariat.

In the early Sui and Tang Dynasties, Ren Zhongshu was appointed as the governor of Zhongshu Province, which belonged to the post of prime minister. In the Sui Dynasty, Emperor Wen's father's name was Yang Zhong, so he avoided it for loyalty, and changed the order of Zhongshu to the order of internal history, and the province of Zhongshu was the province of internal history. For a period of time, Emperor Yang Di was changed into an internal minister's order, and he began to become the prime minister together with his attendants, surpassing the official secretary's order in specific governance. The official ministers only became an honorary title, and the three sons of Emperor Wendi of Sui Dynasty were added to the official ministers at the same time, while the ruling Su Yang was the official ministers (internal history order). The Tang Dynasty still followed the Sui Dynasty, and Emperor Taizong began to add titles to ministerial orders. In the third year of Tang Wude (620), he was restored as a secretariat order. Gaozong was changed to the right phase. Wu Zetian changed the order of Chinese books to "internal history" and the provinces of Chinese books to "Fengge". At the beginning of Xuanzong Kaiyuan, it was changed to Ziweiling, and at the beginning of Tianbao, it was changed to the right. After all, it is restored. In the early Tang Dynasty, China's calligraphy ranked third, and its position was superior to that of middle. In the second year of Dali, it was promoted to the second grade. In the late Tang dynasty, the assistant ministers of the two provinces were prime ministers, and the governors of the two provinces held high positions and did not worship often. Or use it to add a title to the commander of the military region of the buffer region without pre-politics. After the death of Feng Dao in the first year of virtue at the weekend, the secretariat no longer really worshipped him.

Prime Minister: In ancient China, the official name generally referred to the highest chief executive below the emperor, and the official who assisted the emperor in formulating all policies was the chief executive of all officials.

History: There were names such as Xiang and Xiang Gang in the pre-Qin period. The Qin Dynasty formally established the Prime Minister. The Western Han Dynasty also set up a prime minister, who loved Yuan Shou for two years (BC 1), and the prime minister was changed to Da Situ. This period of time is as long as 220 years, which is the longest time to set up the post of prime minister in history. There was no prime minister for more than 200 years from Eddie to Jian 'an 13th year in the Eastern Han Dynasty (2008), but Cao Cao was re-established and served as prime minister in Jian 'an 13th year, but the time was short. During the 370 years of the Three Kingdoms, the Jin Dynasty and the Southern and Northern Dynasties, there was no prime minister except in the early years of Shu and the Eastern Jin and Northern Dynasties, and there was no prime minister in the Sui Dynasty, and there was basically no prime minister in the Tang and Song Dynasties. In the first year of Xuanzong (7 13), it was changed to Shangshu Zuoshi, and in the eighth year of Southern Song Dynasty (1 172), it was also changed to Shangshu Zuoshi.

Difference: Prime Minister is a general term for officials who assisted the monarch and held the highest power of the country in ancient China, not a specific official name.

It should be noted that the prime minister is not necessarily the prime minister, and the prime minister has different official positions in different dynasties.

The post of prime minister is below one person (emperor) and above ten thousand people. Generally speaking, the official product is the first product, and the early Tang dynasty is the third product, serving the middle and upper classes. In the second year of Dali, it was promoted to the second grade.