He initiated the "rule of chastity" in history. By actively eliminating the separatist forces in various places, and moderately practicing frugality, the people can recuperate, and a peaceful and prosperous society has emerged.

This laid an important foundation for the later prosperity of Kaiyuan and pushed the feudal society of China to its peak.

Let me introduce his main achievements.

Politically, Emperor Taizong first knew people and was good at their duties.

In order to realize the long-term stability of the Tang Dynasty, he did not avoid enmity, regardless of family or nationality, and accepted both.

So once in Zhenguan, there were many talents, and he also merged counties to get rid of the disadvantages of fewer people and more officials.

Economically, first of all, it is frivolous and frivolous, to persuade farmers to mulberry.

As we all know, Yang Di levied corvee endlessly, which led to people's complaints, which led to the peasant uprising.

The rulers of the Tang Dynasty learned the lessons from the demise of the Sui Dynasty, reduced or exempted taxes for many times, built water conservancy projects and promoted the development of agricultural production.

The second is to avoid extravagance and waste and keep it simple.

Emperor Taizong advocated frugality, forbade the construction of pavilions and local officials to pay tribute to rare treasures.

In terms of ideology and culture, it advocates the imperial examination and takes Confucianism as the teacher. The cultural policy of the Tang Dynasty basically followed the previous generation.

Advocating the imperial examination is to inherit the Sui system, and taking Confucianism as a teacher is to inherit the Han system.

Greatly expanded the scale of Chinese studies, expanded the society and increased the number of students.

During the Zhenguan period, there was social and economic prosperity.

At that time, politics was relatively clear, economy developed rapidly, and national strength gradually increased. Historically, the rule at that time was called "the rule of Zhenguan"