According to legend, Taiyuan was a fief of the ancient Tang Dynasty, Shanxi was called Jin for short, and Sanjin was the laudatory name of Shanxi and Taiyuan. This paper will talk about the history of Taiyuan from the relationship between Tang, Jin and Sanjin.

About "Sanjin". In 458 BC, shortly after Jin Aigong ascended the throne, Zhi Bo, one of the six ministers of the State of Jin (Zhi, Zhao, Wei, Han, Fan and BOC), seized the real power of the State of Jin. Together with Han and Wei, he carved up the land of Fan and Bank of China. Then Zhi Bo joined forces with Han and Wei to besiege Jinyang and Enemy at the Gates, the capital of Zhao, in an attempt to destroy Zhao in one fell swoop. Based on the principle of "the lips are dead and the teeth are cold", Zhao Xiangzi sent someone to secretly persuade the Han and Wei to jointly deal with Zhi Bo, and defeated the wisdom army in Jinyang, killing Zhi Bo. In 453 BC, Zhao, Han and Wei carved up the territory of the State of Jin. In 403 BC, that is, in the twenty-third year of Zhou Weilie (the seventeenth year of Jin Weigong), Zhao, Wei and Han were made princes. Since Zhao, Wei and Han were all born in the State of Jin, after the "Three Kingdoms Divided into Jin", although the State of Jin was declared extinct, the emerging Zhao, Wei and Han were among the vassals and tampered with the China stage. As a principality, however, gold has existed in name only for 28 years in a narrow world.

Jin and Sanjin were inseparable ancient civilizations in the history of China before the reunification of Qin. The so-called Sanjin means that the three families are divided into Jin and Jin is divided into three families. In the history of China, the division of the three ethnic groups into Jin started in the Warring States Period (403 BC). Sima Guang's Zi Tong Zhi Jian begins with the division of Jin by three clans, and mentions the name of Sanjin. Sanjin, in fact, is also the collective name of this period of history for future generations. I think, as the later generations called Shu, Wei and tachileik at the end of the Eastern Han Dynasty, it generally refers to this period of history. The Three Jin Dynasties not only represented the Jin State that dominated the Spring and Autumn Period, but also included Zhao, Wei and Han among the Seven Heroes in the Warring States Period. After 2000, people still miss and praise Sanjin, and they are collectively called Sanjin. It can be seen that Sanjin's position in the history of China reflects the connotation of being one of the cradles of China's civilization history more widely than Shanxi. It shows that Sanjin culture has realized the integration of northern culture and central plains culture and made historic contributions to the inheritance and development of Chinese national culture. It shows that Sanjin, with its superior geographical position, rich resources and talented people, is a treasure trove of geomantic omen in the motherland.

The sons and daughters of Sanjin, who have a long history and ancient culture of 30 centuries, will surely play a more brilliant triumph in moderns in the new century!