Spring and Autumn Period

From Wiki China org cn

By the 5th century BC, the Eastern Zhou had declined, and the vassal states continued on their own paths of development. In the Yellow River region, the states of Qi, Lu, Jin, Song and Qin fought for supremacy, while the states of Chu, Wu and Yue in the Yangtze River region gradually gained power. These states became influential, though the King of Zhou was still viewed as the nominal supreme ruler. This chaotic time was called the "Spring and Autumn Period (春秋时期)."