Wei is a commonly used country name in ancient times.

Wei was originally a vassal state of the Zhou Dynasty, surnamed Ji, and was destroyed in the 7th century BC. This land was given to Biwan, and since then, the descendants of Biwan have taken Wei as their surname.

During the Warring States period, Bi Wan's descendants participated in the division of the three kingdoms into Jin, and were called vassal states, and established Wei State, which was the Wei State among the seven heroes of the Warring States period and the first powerful country among the seven heroes of the Warring States period. Until the end of 3rd century BC, Wei was destroyed by Qin Shihuang.

At the end of the Qin dynasty, there was chaos in the world, and the nobles of the six countries were restored one after another. The descendants of Wei, such as Wei Bao, revived Wei, wavered between Chu and Han, and were finally defeated by Han Xin and banned by Liu Bang.

At the end of the Eastern Han Dynasty, Cao Cao, a powerful minister, was promoted to Wang Wei by Emperor Xian of the Han Dynasty, and established the Wei State of the Eastern Han Dynasty, which was a kingdom under the jurisdiction of the Eastern Han Dynasty. After the death of Cao Cao, Cao Pi attacked Wang Wei. Soon, Cao Pi usurped the Han Dynasty to establish the Wei Dynasty, that is, Cao Wei in the Three Kingdoms period, which ruled the main elite areas in China and inherited the international status of the Han Dynasty. Until half a century later, just like the abdication of Han and Wei Dynasties, Si Mazhao, the powerful minister, was promoted to the position of King of Jin and established the State of Jin in Cao and Wei Dynasties. Shortly after his son Sima Yan attacked the Jin Queen, he usurped the independence of Wei and established the Jin Dynasty in the Western Jin Dynasty. Cao Wei perished.

The next regime to see Wei was in the Sixteen Kingdoms period, which was established in 350 and died in 352. The founding king and the dying king are the same person, named Ran Min, Han nationality, and now they are online celebrities. At that time, Ran Min wiped out the post-Zhao established by Jie people, established the State of Wei, split Hebei, called on all the people to kill Hu, and launched a retaliatory counter-killing against Jie people and the southern Xiongnu who destroyed Han. Jie people were basically killed, and the southern Xiongnu was almost killed. However, in the subsequent battle with the former Yan regime of the Murong Department of Xianbei in the east, Wei Ran was defeated, perished and Ran Min was killed.

The next one is Zhai Wei, which was established in the north after the Feishui War in the late 1980s, more than 30 years later. Zhai here reads di, two tones. Zhai Wei is a political power established by Ding Ling people. The name of the founding king is Zhai Liao, and the king of national subjugation is his son Zhai Zhao. After three or four years of separatist regime at the junction of Henan and Hebei, it was beaten by several regimes in the Eastern Jin Dynasty, Houyan, Xiyan and Qianqin, crippled by the Eastern Jin Dynasty, and destroyed by Houyan established by the Murong Department of Xianbei in the east.

Next came the Northern Wei Dynasty, and the Tuoba Department of Xianbei in the Central Plains was established at the same time as the Northern Wei Dynasty. The predecessor of the Northern Wei Dynasty was Daiguo, which was destroyed by the sword of the previous dynasty. After the Battle of Feishui, with the support of Hou Yan, Tuoba GUI, a residual force, revived the country and was called Wei. After the efforts of Tuoba GUI, Tuoba Si and Tuoba Tao for three generations and sixty years, the Northern Wei Dynasty unified the North, ended the Sixteen Kingdoms period, fought against the Southern Dynasties and entered the Southern and Northern Dynasties. Later, during the period of Emperor Tuoba Hong, the great-grandson of Tuoba Tao, the land equalization system was implemented, land annexation was restricted, and the sinicization reform was initiated, and the capital was moved from Datong to Luoyang. After the death of Ming Di, the grandson of Emperor Xiaowen, the Northern Wei Dynasty fell into civil strife that lasted for nearly ten years. Finally, in 535, the Northern Wei was divided into the Eastern Wei and the Western Wei.

In the Eastern Wei Dynasty, Gao Huan was in power, and in the Western Wei Dynasty, Yu Wentai was in power. Finally, in the 1950s, the Eastern Wei Dynasty and the Western Wei Dynasty were usurped by Gao Huan's son and Yu Wentai's nephew respectively, and the Northern Qi Dynasty and the Northern Zhou Dynasty were established respectively.

None of the later serious regimes took Wei as the country's title.