The so-called "change of dynasty" is the change of feudal regime. Generally speaking, there are three main ways or means to achieve this, namely "peasant uprising", "palace coup", and "foreign invasion". Usually, at the end of the feudal dynasty, the "change of dynasty" is most likely to occur, and the old dynasty replaces the new dynasty.

In ancient China, what was the reason for the constant change of dynasty?

There are many dynasties in ancient China, from the beginning of Qin Shi Huang's unification of the six countries to establish a unified dynasty, only the Han Dynasty for more than 400 years, and the middle was divided into two sections by Wang Mang's new dynasty, and the Tang Dynasty, the two Song Dynasty, and the Ming and Qing dynasties did not exceed 300 years. Every time there is a change of dynasty, there are specific circumstances, and on the whole, I think the main reasons are as follows.

The idea that the emperor will take turns to sit and come to my house next year has been around for a long time

The phrase "the emperor takes turns to sit and come to my house next year" can be called a common saying in private in China, of course, it cannot be said on the surface of feudal society, and it is said that it is a rebellion and a head to be killed. "Journey to the West" is said in a grand manner through the mouth of Sun Wukong, which shows that this concept is deeply rooted in the hearts of the people.

The formation of this concept can be traced back to the rebellion of Chen Sheng and Wu Guang in the last years of the Qin Dynasty, and their slogan was "Princes and generals, rather have a kind of thing?", which meant the same thing. If you are high up and do not sympathize with the people, it will be a matter of time before you are resisted and the dynasty is changed.

The theory of "Feng Shui", which has Chinese characteristics, also supports this concept. Where there is the spirit of the emperor, where is the dragon vein, this is actually a kind of psychological expectation of the common people who are dissatisfied with the current regime, look forward to the new regime, and look forward to the change of dynasty.

The limit of the land to feed the population led to the change of dynasty from prosperity to decline

The general trend of the world will be divided for a long time, and it will be divided for a long time. A new dynasty was built on the basis of years of war, a period characterized by a massive decline in population, a desire for peace and recuperation.

In response to the needs of the times, the newly established regime allocated land, lightly endowed people, and the people lived and worked in peace and contentment, and the dynasty prospered step by step.

With the prosperity of the economy, pleasure and corruption go hand in hand, such as the Ming Emperor or the Lord of Zhongxing, this trend can be delayed, but if the previous generations of mediocre lords or faint monarchs, the life of the upper class is becoming more and more corrupt, corruption will become more and more intense, and the taxes of various names will become more and more.

In years such as droughts and floods, when the harvest is not good, the peasants who are unable to make ends meet have no choice but to sell their land and become tenants. In order to survive, it is an inevitable result for the officials to force the people to rebel and change the dynasty.

The rise and fall of the nomads and the Central Plains dynasties led to a change of dynasty

Since ancient times, due to China's natural geographical location, a complex relationship between the Central Plains Dynasty and the nomadic peoples in the north has been bounded by the Great Wall.

Due to the lack of materials, the nomads of the steppe robbed the Central Plains as one of their means of survival.

When the Central Plains Dynasty was strong, this threat could be confined to the border line. When the Central Plains Dynasty was weak or fell into civil strife and had no time to take care of itself, the nomads would take advantage of the situation and enter the Central Plains, as was the case with the Xiongnu in the Qin and Han dynasties and the Wuhu Rebellion in the last years of the Western Jin Dynasty.

The Jin Dynasty destroyed the Northern Song Dynasty, the Mongols destroyed the Southern Song Dynasty, and the Manchu Qing Dynasty took Li Zicheng's uprising to enter the customs to replace the Ming Dynasty.

The cycle of any dynasty or country rarely exceeds 300 years, which means that a dynasty or country has cycles. Neither China nor other countries can escape this law. The root cause is the consequences of extreme injustice in the later stages of society caused by class solidification.

The reason for the collapse of a dynasty in feudal society is basically natural disasters and man-made disasters, a cycle of about 300 years, the land is dominant, more than 200 years of gradual class solidification, the resulting social class contradictions have been irreconcilable, coupled with the catalyst of natural disasters, then it is imperative to change the dynasty, the general trend of the world will be divided for a long time, and it will be divided for a long time.

Summary: The law of land annexation, the Central Plains Dynasty and the nomads are the reasons for the frequent change of dynasties in ancient China, and the more important reason is that the concept of "the emperor takes turns to sit and come to my house next year" is deeply rooted in the hearts of the people, so that there is no greater psychological resistance to the change of dynasty.