What developments have taken place in politics, economy and culture since Qin unified the six countries?

Politically, he abolished the enfeoffment system nationwide and replaced it with the county system. Under the direct control of the emperor, he established a whole set of institutions from the central government to the counties. On the basis of the original laws and decrees of the State of Qin and drawing lessons from some provisions of the laws of the six countries, unified laws were formulated and promulgated. The nobles before the Six Kingdoms were moved to Guanzhong and Bashu to prevent their separatist activities. It also explicitly prohibits the collection of weapons by the people, destroys the confiscated weapons, and casts 12 gold men.

Culturally, seal script was formulated on the basis of the common characters of Qin State and promulgated nationwide. According to the five virtues of Yin and Yang in the Warring States period, Qin gained water virtue, the water color was black, and the final number was six, so it was stipulated that the clothes, flags and flags were still black, and the system of Fuchuan, Judge and Yucheng was all six.

Economically, the policy of emphasizing agriculture and restraining commerce was implemented to foster the development of feudal private ownership of land. In the thirty-first year of Qin Shihuang (2 16 BC), landlords and yeomen who seized land were ordered to declare the amount of land to the government and pay taxes. Their land ownership was recognized and protected by the government, and the national weights and measures system was unified based on the weights and measures formulated by Shang Yang. Unify the national monetary system. The centralized feudal monarchy with the emperor as the center was created by politics until the late Qing Dynasty.

Thought and culture burn books and bury Confucianism, unify the subordination of words, and make thoughts get a unified measure.

Economically, attaching importance to agriculture and restraining commerce has further developed agricultural development, unified monetary unit, extensive channels and post-station traffic.

In addition, there is a military aspect to the construction of the Great Wall, which is to strengthen resistance to nomadic tribes in the north.