Was the four door valve rotation system formed after 78 years or did it already exist?

This time comes to form.

It's been a long time since you've been very obedient today.

1. Reasons.

1) Historical roots: the development of powerful landlord forces since the Eastern Han Dynasty.

2) Political reasons: The Wei and Jin regimes ruled on the basis of the scholars, and the emperor relied on the support of the scholars;

3) Political guarantee: The Jiupin Zhongzheng system is the political guarantee of the scholar system. (It has become a tool for the family to cultivate private power and maintain political privileges).

2. Introduction. The system of dominant family is a manifestation of the development of the privileges of the feudal landlord class to a certain historical period. During the period of the Three Kingdoms and the Northern and Southern Dynasties, the gate valve system was closely related to the politics, economy and culture of the time. The gate valve system in the Middle Ages in China, on the whole, is characterized by the selection and appointment of officials according to the rank of the family; As for the exemption of the scholars from forced labor, the marriage of the family, and the characteristics of "when the scholars are separated, they are separated from the sky", they are all gradually derived from the former.

Therefore, for a long period of time, the gate valve system mainly belongs to the category of political system, and the components of social system are secondary. It was only after the Sui and Tang dynasties that it was gradually and completely transformed into a social system and finally withdrew from the stage of history. The gate valve system generally sprouted in the late Eastern Han Dynasty, initially formed in Cao Wei and Western Jin Dynasty, established and flourished in the Eastern Jin Dynasty and the early period of the Northern and Southern Dynasties, and declined in the late period of the Northern and Southern Dynasties.

The gate valve system is a concentrated embodiment of the contradiction between the relatively underdeveloped economic and technological foundation of the Wei and Jin dynasties and the political contradiction between the highly centralized imperial power on the mainland. There is no doubt that this system is reactionary, backward and decadent, but in the special period when the Eastern and Western worlds were simultaneously subjected to large-scale invasion by barbarian peoples, it was precisely through the gate valve system that the spark of traditional civilization was preserved.

Entitled: Representation status.

Large landowners: Represents a lot of land and tenant farmers.

Gate valve system: That is to say, it is these people who are in charge of the country.

1) Historical roots: the development of powerful landlord forces since the Eastern Han Dynasty.

2) Political reasons: The Wei and Jin regimes ruled on the basis of the scholars, and the emperor relied on the support of the scholars;

3) Political guarantee: The Jiupin Zhongzheng system is the political guarantee of the scholar system. (It has become a tool for the family to cultivate private power and maintain political privileges).

When the Eastern Han Dynasty was founded, Liu Xiu rewarded them with a lot of land in order to cut off the rights of the generals who raised troops together, which can be regarded as the beginning.

The talent selection system of the Eastern Han Dynasty was the inspection system, but in the later period, it basically tended to be the first to watch the officials, so there were many generations of ministers' families, such as Yuan Shao's family, which was the fourth and third dukes, and the power was gradually controlled by the big scholars.

During the Three Kingdoms period, Cao Wei and Shu Han both suppressed the clans, but the Sun Wu regime relied on the support of the clans to rely on the clans to support its origins, and even implemented the system of leading soldiers and the system of re-guests.

After the fall of the Western Jin Dynasty, Sima Rui was established in the Western Jin Dynasty under the joint support of the four families of Wu Di and the four families of Nandu, and was more dependent on the gate valve family.

The Jin Dynasty inherited Cao Wei's Jiupin Zhongzheng selection control, and later basically relied on the door to judge a person.