It was an extremely chaotic era, known as the "Three Kingdoms, Two Jins, Southern and Northern Dynasties".
In 220 AD, Cao Cao's son Cao Pi forced Emperor Xian of the Han Dynasty to abdicate, established the Wei State, and entered the Three Kingdoms period. Later, Sima Yan usurped the throne and established the Jin Kingdom and unified China. The Jin Dynasty at this time was later called the Western Jin Dynasty.
The "Eight Kings Rebellion" broke out in the Western Jin Dynasty, and foreign tribes began to invade with troops, resulting in the Five Hus chaos in China, also known as the Five Hus and Sixteen Kingdoms period. It ended when the north was unified by the Northern Wei Dynasty, which had nothing to do with Cao Cao's Wei state, at which time the north began to be called the Northern Dynasties.
When the Five Husties began to disrupt China, the Western Jin Dynasty was destroyed. The clan of the Jin Dynasty established the Eastern Jin Dynasty in Jiankang (later Nanjing City) and occupied the territory of southern China, which was called the Southern Dynasties.
The forces of the Southern and Northern Dynasties have been in opposition and coexistence for a long time, and they have eaten each other up, so they are called the Southern and Northern Dynasties.
After the fall of the Eastern Jin Dynasty in the Southern Dynasty, it experienced four dynasties: Song (not the Song Dynasty that later Zhao Kuangyin), Qi, Liang, and Chen.
The Northern Wei in the Northern Dynasties was later split into the Western Wei and the Eastern Wei like an earthworm by being "cut off with a vertical sword", and then transformed into each other: the former later became the Northern Zhou, and the latter later became the Northern Qi, the protagonist of this novel.
After the Northern Zhou Dynasty destroyed the Northern Qi Dynasty, Yang Jian usurped the throne. The Northern Zhou Dynasty was destroyed and changed to the Sui Dynasty. Then he went south and destroyed the Chen State of the Southern Dynasty, and then reunified China.
It can be said to be a sad song for troubled times, it is really chaotic.
