In 3 16, Sima Ye, the last emperor of the Western Jin Dynasty, was captured and the Western Jin Dynasty perished. However, some old ministers of the Jin Dynasty did not want to die. They are still active all over the country, ready to restore the rule of the Jin Dynasty. In 3 17 AD, with the support of the families of the Central Plains and Nandujiang, King Langya proclaimed himself emperor in Jiankang and made him emperor of the Jin and Yuan Dynasties. Historians call it the Eastern Jin Dynasty because he settled in Jiangnan after the Western Jin Dynasty.
Because the ruling class of the Eastern Jin Dynasty is mainly composed of celebrities in the Central Plains who fled across the river and indigenous clans in the south of the Yangtze River, there are geographical and cultural differences and they are mutually exclusive; In the Eastern Jin Dynasty 100 years, the clans in the Central Plains occupied the dominant position, while the indigenous clans in the South were always excluded. During the reign of Yuan Di, Beiyang Minister Wang Dao wanted to change this situation. He ran between the northern and southern tribes, trying to persuade all ethnic groups to carry out repairs, but with little effect. Later, Jiangnan clans rebelled many times because they were dissatisfied with the rule of the Eastern Jin Dynasty, which greatly shook the rule of the Eastern Jin Dynasty.
From the first year of Jinyuan to the third year of Jinan Longan, the Eastern Jin Dynasty developed steadily. Although there were some rebellions during this period, they were all suppressed. In the last few years in Yuan Di, Wang Dao's younger brother Wang Dun fought against the rulers, but was defeated by his younger brother Wang Dao and his courtiers. Since then, Huan Wen once coveted the throne and was resisted by two families in Xie Wang. In 385 AD, Xie An, an important official in the Eastern Jin Dynasty, died of illness. Sima Yan gave power to his younger brother Sima Daozi, and Sima Daozi and his son Sima Yuan Xian controlled political affairs. They are cruel and incompetent, wantonly exploiting the people and giving opportunities to families trying to occupy the throne. In 398 AD, the allied forces led by Huan Xuan, Kan and others occupied the counties west of Jiankang, limited the imperial court to eight counties in the east, and began to decline.
Anlong' an for three years. Sun En, who believed in the "body blow" religion, used the commotion of the people to launch an uprising in the East. They developed into hundreds of thousands of people in just ten days, and then they were defeated by Xie Yan and Liu Laozhi in the Jin Dynasty and fled to the island. It was not until AD 402 that they were completely wiped out.
The uprising greatly weakened the rulers' strength, and Huan Xuan took this opportunity to send troops to seize Jiankang, abolish Emperor Jin 'an and become emperor on his own. At this time, Xie, Wang and Fan among the four Jin families declined one after another. The only person who has the strength to fight against Huan Xuan is Emperor Wu of Song, who only developed when fighting against the Sun En Uprising. So Emperor Wu of Song took the lead in defeating Huan Xuan and pushing Sima Wende to the throne, nominally restoring the rule of the rulers, but the real power was completely in the hands of Emperor Wu of Song. In 420 AD, Emperor Wu of Song abolished Gong Jin, established the Song State, and ended the rule of the Eastern Jin Dynasty.
Although the Eastern Jin Dynasty was biased towards the south of the Yangtze River, emperors of all dynasties hoped to recover the land in the north. Among them, in the Eastern Jin Dynasty, there were many Northern Expeditions with Wang, Xie, Huan and Yu as the main members, including many famous soldiers. In AD 3 1 1, General Zu Ti sent troops to recover Hebei, but died of depression because he was rejected by the imperial court, and finally failed to complete the great cause of reunification. In 383 AD, after Xie An defeated Fu Jian in the Battle of Feishui, he immediately sent his brother north to recover Xu, Yanzhou, Qingzhou, Si, Yuzhou and Liangzhou, and achieved the first major victory in the history of the Northern Expedition.
The Eastern Jin Dynasty was established in the south of the Yangtze River, while the northern part of China was controlled by Xianbei and Qiang people, which was called "Five Lakes and Sixteen Countries" in history. As ethnic minorities entered the Central Plains, their contact with Chinese culture increased, and Chinese culture gradually developed into a nation with the same living habits as the Han nationality, which was later merged by the Han nationality. Since Wei, Jin, Southern and Northern Dynasties, the population structure in the northern part of the Central Plains has generally formed a mixed population structure with the Han nationality as the main body, making China a multi-ethnic country with similar living habits.
The Eastern Jin Dynasty was founded by Si Marui, the emperor of the Jin Dynasty, and lasted for 103. During this period, China has been in a state of division. After the demise of the Eastern Jin Dynasty, this state has not changed, and then the Southern and Northern Dynasties split in 3354.