The Jin Dynasty (266-420) was a dynasty in Chinese history, with the Three Kingdoms and the Northern and Southern Dynasties, divided into two periods: the Western Jin Dynasty and the Eastern Jin Dynasty. Among them, the Western Jin Dynasty is a unified dynasty in Chinese history, and the Eastern Jin Dynasty belongs to one of the six dynasties, and the two Jin Dynasties have a total of fifteen emperors, a total of 155 years.
In 266, Sima Yan usurped Wei and established power, with the state name of Jin, the capital luoyang, known as the Western Jin Dynasty, and Sima Yan was Emperor Wu of Jin. In 280, the Western Jin Dynasty destroyed Wu and completed unification. Later, after experiencing the Rebellion of the Eight Kings and the Disaster of Yongjia, the country's strength gradually declined. In 313, the Jin Emperor moved the capital to Chang'an, and in 316, the Western Jin Dynasty was destroyed by the Xiongnu. In 317, the Western Jin dynasty crossed the jiangnan to the south, and Sima Rui continued the Jin dynasty at Jianye (present-day Nanjing, Jiangsu Province), known as the Eastern Jin Dynasty. The Eastern Jin Dynasty had repeatedly northern expeditions to the Central Plains han dynasty. After the Battle of Shuishui between the Eastern Jin Dynasty and Former Qin in 383, the Eastern Jin Dynasty won more with less and was temporarily consolidated. During the Two Jin Dynasties, the Han Chinese who migrated south from the north brought a large amount of productivity and advanced technology into Jiangnan and further developed the Jiangnan region. In 420, Liu Yu established the Liu Song Dynasty, and the Eastern Jin Dynasty fell. Chinese history entered the Period of the Southern and Northern Dynasties.
