At the end of the Spring and Autumn Period, the State of Jin was monopolized by Korea, Zhao, Wei, Zhi, Fan and Bank of China. In 490 BC, Zhao defeated Fan and BOC. In 458 BC, the land of Fan and Bank of China was divided up by Han, Zhao, Wei and Zhi.
Korea, Zhao and Wei jointly defeated the Zhi family, divided the land equally, and established two regimes of Korea, Zhao and Wei San respectively.
In 406 BC, King Wei Lie of Zhou established three princes and officially recognized their vassal status. Zi Tong Zhi Jian records: "In the twenty-third year of King Wei Lie of Zhou Dynasty, doctors Wei Si, Evonne and Han Qian of Jin Dynasty were governors ...". Historians regard this as the dividing point of the Eastern Zhou, the Spring and Autumn Period and the Warring States Period.