Jin dynasty (266–420)
Founding

The Jin dynasty was founded by Sima Yan, who was known posthumously as Emperor Wu (the "Martial Emperor of Jin"). After succeeding his father as the King of Jin and regent of Cao Wei in 265, Sima Yan declared himself emperor of the Jin dynasty in February 266 and forced the final Wei ruler Cao Huan to abdicate. Emperor Wu permitted Cao Huan to live with honor as the Prince of Chenliu, and buried him with imperial ceremony. Under Emperor Wu, the Jin dynasty conquered Eastern Wu in 280 and united China proper, thus ending the Three Kingdoms period. The period of unity was relatively short-lived, as the Jin state was soon weakened by corruption, political turmoil, and internal conflicts. Emperor Wu's son Zhong, posthumously known as Emperor Hui, was developmentally disabled.
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