First, the three schools were divided into Jin and Tian replaced Jiang, which marked the subversion of the ritual and music system. The Zhou Dynasty ruled the country by courtesy and formulated a strict hierarchical system. For example, princes can only be inherited by the princes' sons, and doctors are inherited by the doctors' sons. In 48 1 year BC, Tian Chang, the doctor of Qi, killed Gong Jian, the monarch of Qi, and gained the political power of Qi, and nobody cared. As a result, the "usurper" of the State of Jin became more and more unscrupulous on the road of seizing the rights of the State of Jin, and finally in 453 BC, it gradually evolved from the division of powers among the ministers of the six countries to the division of land among the ministers of Han, Zhao and Wei San. The monarch of the State of Jin existed in name only, so that in 403 BC, Han, Zhao and Wei were finally recognized by the Zhou Emperor and became princes, and went their separate ways. Tian was finally recognized by the Zhou Emperor in 386 BC, became a vassal and took the title of Qi State. The three families were divided into Jin, and Jiang in Tian Dynasty did not respect the system of rites and music, and broke the rules of rites and music. From then on, the vassal States no longer abide by the system, bullying, mutual annexation and war disputes.
Second, Zhou Tianzi lost his prestige and appeal because he recognized the fait accompli that the three clans were divided into Jin and Tian instead of Jiang, and he became a small vassal from Zhou Tianzi. Zhou sealed the four princes of Zhao, Han and Zhou. From then on, the princes no longer obeyed the orders of the Zhou royal family, only governed several fiefs around the capital, and were threatened by powerful countries at any time.
Third, it marks that the emerging landlord class has stepped onto the historical stage and promoted the establishment of the feudal system. Doctors replaced princes. In order to expand their own strength, kings of all countries had to reform their political and economic systems to ease class contradictions, enhance national strength and gradually transition to feudal society.
Fourth, hegemonic politics ends and wars and disputes begin! During the Spring and Autumn Period, the vassal states only wanted to dominate one side, but they also had to abide by the rules and be bound by the Zhou Dynasty. After the three clans were divided into Jin, Tian replaced Jiang, and the State of Jin, one of the five tyrants in the Spring and Autumn Period, perished, and China gave birth to the Seven Heroes of Korea, Zhao and Wei San in the Warring States Period. The vassal States lost their restraint and no longer wanted to dominate one side, but stood for generations. So big countries merged with small countries, many small vassal countries were annexed, and big countries fought with each other and eventually moved towards reunification.
Fifthly, The Spring and Autumn Annals recorded the events of ***242 years from the year of Lu Yin (722 BC) to the fourteenth year of Lu Aigong (48 BC1year). 48 1 This year happens to be the year of perfect weather in Jiang Qi. Therefore, the history recorded in Chunqiu is called Chunqiu, with the end of the history recorded in Chunqiu as the dividing line, followed by the Warring States.