Looking at the two thousand years of history of Chinese civilization, we can see that there is a law of historical cycles in it.
The first rule is "the general trend of the world, long-term unity, long-term division, long-term unity, long-term unity."
The second rule is "the rise and fall change and the cycle of reincarnation"
The third rule is "similarity in the era of powerful people". Let me give examples one by one.
Since the Zhou Dynasty collapsed in the era of slavery, and the Spring and Autumn Period and the Warring States Period was finally unified by the border Qin State for more than 500 years, Chinese history has entered the second turning point, from slavery to feudal dynasty era. "Feudalism" is actually not a derogatory term. It was called "Feika" in ancient times, which means feudalism. It is to establish a new dynasty order through the feudal system , so that the upper and lower levels can form a social model constructed by kings, scholars, workers, agriculture, and commerce as pyramids. Let a regime last forever.

Qin Shihuang
So, after the founding of Qin Empire , the northern ethnic minorities at that time were called Huns , which belonged to a place that could not be tolerated by Chinese civilization. The west (today's Xinjiang, Qinghai and several Stan countries in Central Asia) did not belong to the imperial ruling area. At that time, the Qin Empire used Shanxi and Henan as the Central Plains to radiate its notifications outward. Although the Qin Empire was powerful, the northern ethnic minorities posed a serious threat to the empire's rule. Therefore, after Qin Shihuang consolidated and improved the Great Wall 20,000-mile Great Wall 3, he then sent general Meng Tian to rely on the Great Wall to attack the Huns to ensure his imperial power. But unexpectedly, I ignored the suppression of power, which led to the powerful people of the original six countries finally rising up and re-formed the era of the princes fighting for hegemony led by Xiang Yu .

Chu and Han battle for hegemony
Han Dynasty , known as the "rogue", Liu Bang relied on his good popularity and good at using people, and finally defeated Xiang Yu in one fell swoop through more than four years of Chu and Han battle for hegemony and established the Han Dynasty. Since , the Han Emperor Gaozu , Liu Bang has been working together to , Liu Xie, and , the Western Han Dynasty, and , the Eastern Han Dynasty, have been working together for more than 400 years.
Similarly, although Emperor Gaozu of Han Liu Bang was quite powerful in the civil war, in the early years of the founding of the People's Republic of China, the country was destroyed and the people were declining. Although the area was large, it was broken and poor. It is said that the four horses Liu Bang rode were not the same color, and the ministers were the ones who were the ones who were the ones who were on a ox cart to travel.
In the early days of the establishment of the Han Dynasty, the north was the powerful Huns. The leader Maodun Shanyu at that time once led an army of 400,000 to besiege Liu Bang in Baideng Mountain (today's northeast of Datong City, Shaanxi Province), known in history as " Baideng's siege ". Later, Liu Bang, as a founding emperor, entrusted his relationship with others to deal with the matter, which made Maodun open the door and let Liu Bang escape back to the capital Xi'an in shame.
After this battle, the Liu family group discovered its weakness to the northern nation and set a national policy, that is, his descendants could only pay tribute to the Huns, not only to give the enemy money, but also to marry their daughter to "marriage". In this way, through the vigorous development of the "sleeping on firewood and tasting gall" by the four generations of kings, the "sleeping on firewood and tasting gall" by Emperor Wu of Han Liu Che , the "margin of Han dynasty" finally became rich. It is said that the money in the national treasury is too much to spend, and the rope that is worn with money is rotten. After many reforms, Emperor Wu of Han took the power alone and also had generals like Wei Qing and Huo Qubing . Therefore, under the humiliating accumulation of his four generations of ancestors, Emperor Wu of Han announced domineeringly that "from now on, offense and defense will be easy to do." In the end, the Han Empire beat the Huns half to death, and the Huns were divided into two parts, east and west, and could no longer pose a threat to the Han Empire.
all say that long-term cooperation will lead to separation. After the resolution of foreign contradictions, the Han Empire passed smoothly for four hundred years. Later, the internal eunuchs' internal chaos led to the collapse of the world. It entered the era when Wei, Shu and Wu divided the world into three parts.

Five Barbarians invading China
Wei, Shu, Wu, Three countries fought each other over and over again, and were eventually driven to the rear by the ignorant Sima family, and destroyed Shu Kingdom and Wu Kingdom in one fell swoop. It is known in history as "Western Jin ".Perhaps it was because the Sima family stole the country incorrectly, and the " Eight Kings Rebellion " broke out without two or three generations. The Sima family caused a disaster and attacked each other, and entered the darkest period in Chinese history. The Eight Kings Rebellion caused the "Five Barbarians Invasion of China", and the Han people in the Yellow River basin were killed by ethnic minorities in the north, leaving only a few people left. Other basics crossed the Yangtze River to the south and defected to the Eastern Jin Dynasty. And the northern land is in tragic. Since the of the Eastern Jin Dynasty, the sixteen countries of were established together until Yang Jian unified China and established of the Sui Dynasty, it has experienced a period of great chaos and turmoil for 169 years. At this time, it was "the mountains and rivers were broken and the wind was floating, and the life experience was floating and the rain hit the duckweed." How miserable it is.
After the establishment of the Sui Dynasty, it was very powerful. Except for the neighbor in the same north, it was called the "Xiongnu" during the Qin and Han Dynasties. This is called "Turkish". This ethnic minority not only threatened the Sui Dynasty, but also threatened his later Tang Empire .

The Great Sui Dynasty
The coincidence is that in the Great Sui Empire, which also experienced hundreds of years of war, was like the Qin Dynasty that unified China by "The Remnant of the Fenliu Family", the world was destroyed in two lifetimes. The Han Dynasty, , Tang Dynasty, , which replaced them, also faced the powerful ethnic minority regime in the north. After two to four generations of hard work, he defeated his opponent and restored his glory to rule the world.
Time came to 1644 AD. At this time, Later Jin Nurhaci's son Huang Taiji established the " Qing " dynasty in the northeast, which is the last feudal dynasty in Chinese history. However, the Qing Dynasty's rule at this time was limited to the northeast and local areas of Outer Mongolia now. In 1644, Dorgon invaded Shanhaiguan under the guidance of the Ming Dynasty traitor Wu Sangui, and after the reign of the Qing Dynasty, he finally defeated Nanjing's Nanming court and Guilin's Nanming court one by one, and then attacked Sichuan. Only after the Qing Dynasty's national unification was achieved.

The warlords in the Republic of China
After another thirty years of steady development, Emperor Kangxi finally freed up his hands after suppressing the rebellion of Aobai and killing The Three Feudal Rebellion , defeating the descendants of Zheng Chenggong who retreated to Taiwan, and finally realized the "maple leaf" shape of the Chinese territory.
Heavenly Dao Reincarnation, revival and chaos change.
Since its establishment, the Qing Dynasty has been overthrown to 11 Revolution . He has ruled the land of China for a total of 276 years.
Then, the world entered a period of "declining east and rising west", and the land of China began the warlord melee of "you just finished singing and I came on stage" and the Republic of China period.
And everyone will know the next story.