What was the history of the Tang Dynasty after the Three Kingdoms?

After the Three Kingdoms returned to Jin, the Western Jin ruled corruption and social contradictions were sharp. After years of domestic struggle, it consumed little power. The surrounding ethnic minorities took the opportunity to destroy the Western Jin Dynasty, and the north fell into chaos and entered the period of "Five Lakes and Sixteen Countries".

Wuhu refers to Xiongnu, Xianbei, Jie, Bian and Qiang. The Sixteen Kingdoms refer to former cool, later cool, southern cool, western cool, northern cool, former Zhao, later Zhao, former Qin, later Qin, western Qin, former Yan, later Yan, Southern Yan, northern Yan, summer, and Cheng Han. In fact, there were more than 16 countries in the north at that time. Besides, Daiguo, Wei Ran, Xiyan and Tuguhun are all outside the sixteen countries. There was a brief reunification of the north, and the former Qin Dynasty basically unified the north, but the failure of the "Feishui War" led to the disintegration of the north again.

During the same period, a large number of Han people moved south to avoid disasters and continued in the south. This is the Eastern Jin Dynasty. Later, the Eastern Jin Dynasty succeeded in the Northern Expedition and recovered the area south of the Yellow River. At this time, Sima's power was marginalized and basically hollowed out by Emperor Wu, so the dynasty changed, which was called "Southern Song Dynasty" in history. Later, it was replaced by three regimes: Nanqi, Nanliang and Chen.

In the north, Xianbei people established the Northern Wei regime and unified the whole northern region. Later, the Northern Wei Dynasty was divided into two parts, the eastern part was called the Eastern Wei Dynasty (later renamed as "Northern Qi") and the western part was called the Western Wei Dynasty (later renamed as "Northern Zhou Dynasty"). The Northern Zhou Dynasty destroyed the Northern Qi Dynasty and was replaced by the Sui Dynasty. Later, the Sui Dynasty destroyed Chen in the south and unified the whole country.

Sui Dynasty was a short-lived dynasty. The second generation perished and the world fell apart. But the Li Tang regime soon unified the whole country, so it entered the Tang Dynasty.