We often compare marriage with the beauty of Qin Jin. In fact, many people don't know the origin of Qin and Jin, not to mention the fact that it did happen in history. It was during the Spring and Autumn Period and the Warring States Period that all ethnic groups in China were in an era of rapid development and rapid change. During this period, all ethnic groups in China laid the foundation for the development of the Chinese nation through economic and cultural exchanges, struggles and integration with the Huaxia vassal state as the center. "The goodness of Qin and Jin" is a typical representative of this kind of integration, which not only reflects the internal marriage of Huaxia nationality, but also reflects the extensive exchange and integration between Huaxia nationality and neighboring nationalities, especially Rongdi nationality. At that time, Qin and Jin were two neighboring countries. Qin is located in the eastern part of Gansu and the central part of Shaanxi, and has developed and grown in Rongdi. Qin people were discriminated against by Huaxia because they merged the customs of Rongdi in their contacts with Rongdi, so they were called "Qinrong" and "Diqin". However, through unremitting efforts, the State of Qin has become stronger, and the State of Jin has become a powerful country in the Central Plains. In order to achieve hegemony, Qin Mugong took the initiative to make friends with the State of Jin. In 654 BC, Jin Xiangong married his daughter Ji Bo to Qin Mugong. This is the beginning of "the goodness of Qin and Jin" in history. Later, civil strife broke out in the state of Jin, and Jin Xiangong's two sons, Yiwu and Zhong Er, fled to other countries to take refuge. After Jin Xiangong's death, Yiwu Xu won the support of Qin Mugong on the condition of ceding five cities in Hedong, and he succeeded to the throne, which was called Jin Gonghui in history. However, he not only failed to honor his promise to offer the city to Qin, but also repeatedly provoked the border of Qin. In 647 BC, there was a famine in the State of Jin, and Jin sent people to the State of Qin for help. The State of Qin offered assistance regardless of the past. However, Jin did not repay his kindness afterwards. But two years later, taking advantage of the drought in Qin, he launched an army to attack Qin. He sent troops to fight Jin in Hanyuan, and Jin was defeated and captured. The State of Jin was forced to cede five cities in Hedong to the State of Qin. At the same time, Jin took the Prince hostage and was able to escape back to China. After the Prince went to Qin, Qin Mugong married his daughter Huai Ying to win his heart. As a result, the two countries joined hands and Qin returned the five cities in eastern Shanxi. Qin Jin and China have forged an ancient friendship with the Yellow River as the boundary. It stands to reason that relations between the two countries should be very stable. But when the prince heard that his father Jin was seriously ill and was afraid that the throne would be passed on to others, he left his wife and secretly ran back to Jin. In the second year, after the death of Jin, Prince Yi became the monarch of Jin, that is, Duke Huai of Jin. Since then, the state of Jin has no contact with the state of Qin. When Qin Mugong heard about it, he flew into a rage and immediately decided to help Zhong Er become the monarch of the State of Jin, and even married his daughter, while his son Zhong Er took refuge abroad. In 636 BC, Qin Mugong sent troops to escort Zhong Er back to the State of Jin, crossed the Yellow River eastward and occupied the fox. Representatives of Qin and Zhong Er held peace talks in Meng Hui. The State of Jin agreed to establish Zhong Er as the monarch, so he entered the capital, and his son Zhong Er became Jin Wengong, one of the five tyrants in the Spring and Autumn Period. Qin Jin and China made up.

(I hope to adopt it, thank you)