Which dynasty in history has the most "nest"?

History has its own life, it is like a person, both easy-going and self-respecting. ——Yu Qiuyu

From the establishment of the Qin Dynasty in 221 BC to the abdication of the Qing Emperor Puyi in 1912 AD, China experienced a total of 2133 years of feudalism, during which nine great unified dynasties were born, and there were countless small dynasties and separatist forces mixed in the middle of the great unification dynasty. Each dynasty has its own strengths and weaknesses, some dynasties recuperate and accumulate thick and thin, such as the Han Dynasty; some dynasties are tolerant and orderly, and all countries come to the dynasty, such as the Tang Dynasty, the Han and Tang Dynasties represent the highlight moment of China's feudal society. Some dynasties are difficult to return, weak and poor, and the typical dynasty is "abolishing the Jin and weak Song".

The Western Jin Dynasty looked very powerful, destroying Eastern Wu, ending the Three Kingdoms era, and completing the de facto unification. However, the good times did not last long, and soon after Sima Yan's death, the Western Jin Dynasty began to fall into endless chaos. There are three main reasons for the chaos in China's feudal society: one emperor is not wise, the other is civil unrest (imperial family, foreign relatives, partisan disputes), and the rise of three foreign tribes. Unfortunately, the Western Jin Dynasty put together these three things, elected an emperor with cerebral palsy, and then came the Rebellion of the Seven Kings, and then staged the Wuhu Chaos. The northern region of ancient China fell into a period of war and chaos for hundreds of years, ordinary people were slaughtered, chiye became the norm, and the northern Han people fell into a critical moment of life and death, fortunately, the hard work of Ran Min Emperor left some flames for the development and growth of the northern Han people. Although Cao Wei usurped himself from Han, the Cao clan relatives were still talented at the beginning, Cao Cao himself was a generation of tyrants, Cao Hong, Cao Ren, Xiahou Huan and other Cao clan relatives were also a top strong, which also gave the Cao Wei regime the strength to suppress the local warrior forces; and the Sima regime was different, Sima Yi was born and died the heroes of the Three Kingdoms period, and finally Sima Yi saw that no one in this world was stronger than me, so he began to usurp Wei by the way. However, the foundation of the Sima clan was really unstable, and he could only rely on the division of sima kings to suppress the local magnates, but it backfired, after Sima Yan's death, the emperor with cerebral palsy took the throne, and the sima kings in various places fought to the death for the throne, which greatly depleted the national strength of the Western Jin Dynasty, thus causing ethnic minority forces to enter ancient China, so that northern ancient China entered the dark history of more than a hundred years. Think about it, during the Three Kingdoms period, Cao Wei's surrounding ethnic minorities screamed; Eastern Wu also conquered Baiyue; the worst Shu Han also had the highlight moment of seven captures and seven vertical Meng, but the Western Jin Dynasty, which could complete the great unification, ended up in such a fate, had to make people sigh, the imperial family was basically slaughtered, and the northern population lost more than 80 percent, which was really enough for the nest.