Zhou dynasty: the hero of the royal family was enfeoffed and founded to shield Zhou. At the same time, a patriarchal clan system was established to coordinate and maintain the development of feudal system. It consolidated the rule of the Zhou Dynasty.

Qin Dynasty: After Qin Shihuang unified China, he concentrated state power and abolished the "feudal system". The Qin Dynasty implemented a single "county system" throughout the country.

Han dynasty: Han inherited the Qin system and implemented the feudal system at the same time, including the kingdom and the post-state. These two parallel systems are also called "county system". This practice laid a hidden danger to the central rule of the Western Han Dynasty. After quelling the rebellion of the kingdom and implementing the benevolent law, the kingdom no longer poses a threat to the central government.

In the Tang Dynasty, the prince was appointed as a local hero, and then Daozhou County was appointed as a royal hero, and it was always a buffer region (which was later suggested by the minister to stop), but the later regime of the buffer region became a pain in Li Tang's heart.

Qing dynasty: there was still a system of enfeoffment, which only granted titles to princes, royalty and nobles, no longer owned land, and the country became independent.

For details, see:/view/206121.htm # 3 _1.