Briefly describe the historical background of the Three Kingdoms.

At the end of the Eastern Han Dynasty, the emperor was groggy and incompetent, the eunuch was autocratic, the court was corrupt, and the people were in poverty, and then a large-scale peasant uprising broke out. In troubled times, a generation of heroes emerged in the competition. After a series of wars, the Central Plains gradually formed three regimes: Wei, Shu and Wu. After more than 40 years of checks and balances, Sima Yan finally seized the Cao Wei regime and established the Jin Dynasty to unify the three countries.

The Three Kingdoms (220-280) is a historical period connecting the Eastern Han Dynasty and the Western Jin Dynasty, which is divided into three regimes: Cao Wei, Shu Han and Dongwu. Battle of Red Cliffs and Cao Cao were defeated by Sun Liu's allied forces, which laid the rudiment of the tripartite confrontation among the three countries.

The real power in the later period of Cao Wei was gradually controlled by Sima Yi, who abolished the independence of Emperor Wei Yuan and founded the country "Jin", which was called the Western Jin in history. In 280 AD, the Western Jin Dynasty destroyed Soochow and unified China, thus ending the Three Kingdoms period and entering the Jin Dynasty.

Extended data:

Shu Han:

Shu Han is one of the Three Kingdoms. 22 1 year, Liu Bei proclaimed himself emperor in Chengdu, with the title of Han. The territory of Shu and Han reaches Wudu and Hanzhong in the north, Wuxia in the east, Baoyun and Guangxi in the south and eastern Myanmar in the west. It occupies the whole province of Yunnan, most of Sichuan and Guizhou provinces, Shaanxi, southern Gansu, northwestern Guangxi, northeastern Myanmar and northwestern Vietnam. It was destroyed by Wei in 263. Two emperors, 43 years.

Cao Wei:

Wei State (May +03, 265438-February 4, 266) was one of the separatist regimes in the Three Kingdoms period, and later historians often called it Cao Wei. Since the Northern Wei Dynasty was later called the "post-Wei" and Cao Wei was also called the "pre-Wei" or "pre-Wei", it became the most powerful country among the three countries. In the first year of Yankang (220), Cao Pi forced Emperor Xiandi of Han Dynasty to abdicate, officially replaced the Han Dynasty, established Cao Wei, and made Luoyang its capital. In the second year of Xian Di (265), he usurped Wei, changed his title to Jin, and Cao Wei perished.

Sun Wu:

Wu (May 23, 222-May 0, 280, 65438), one of the Three Kingdoms, was a political power established by Sun Quan in the southeast of China, with the country name "Wu" and was called Sun Wu in history. Because of the confrontation with Cao Wei and Shu Han, its ruling area lives in the east of the Three Kingdoms, so it is also called Wu Dong.

Baidu Encyclopedia-Three Kingdoms