Kingdom of Wei
Cao Cao paid close attention to the application of talented people and economic development during his reign. In the beginning, he tried to recruit as many talented people as possible and made many reformations to discard the old political patterns of the Eastern Han (25-220). As a result, the monopolization of eunuchs was swept away and personages from different social status participated in the Court of Wei.
In order to have a continuous supply of soldiers, a special system called Shijia (family of warriors) System was founded by Cao Cao. Men in those families had to join the army or to do the corvee labor from generation to generation. In this way, the military force of Wei was guaranteed.
Economically, Cao Cao benefited a lot from the Tun Tian (farming done by soldiers) System. Since the productivity of soldiers was greater, the demand for combat food was well met in a short period of time. Besides, Hu Tiao (Tax Modification) System was also carried out, which to some extent added a burden to landlords while lightening the burden on farmers. Under all these policies, the social order of Wei became extremely harmonious.
|Bronze Crossbow Trigger, Kingdom of Wei|
In the late Wei Dynasty, power struggles between the imperial clan of Cao Cao and the military official Sima Yi appeared within the Court. Finally, Sima Yi made contributions to the war and defeated Kingdom of Shu in 263. Two years later, a new dynasty - Jin Dynasty (265-420) was founded by the son of Sima Yi.