1, Spring and Autumn Period: refers to the period from 770 BC to 476 BC, belonging to the Eastern Zhou Dynasty. During the Spring and Autumn Period, the influence of the King of Zhou weakened, and the princes disputed, and Qi Huangong, Jin Wengong, Song Xianggong, Qin Mugong and Chu Zhuangwang successively dominated.
2. Warring States Period: It refers to the period from 475 BC to 22 BC1year, which is called "Warring States Period" by later generations, that is, the period from the late Eastern Zhou Dynasty to the unification of the Central Plains by Qin.