The Eastern Zhou encompasses the Spring and Autumn and Warring States periods — an era of fragmented power and the birth of Confucianism, Taoism, and Legalism.
The Eastern Zhou ended in 256 BCE when the state of Qin captured the Zhou royal capital and the last Zhou king, King Nan, was killed shortly after his submission to Qin; the remaining Zhou dukedom of East Zhou was extinguished in 249 BCE when King Zhuangxiang of Qin completed the conquest, after which Qin went on to unify China as the Qin dynasty in 221 BCE.
The standard multi-volume reference covering the Eastern Zhou's complex feudal politics and intellectual flowering.
Authoritative survey of pre-imperial China covering the Spring and Autumn and Warring States periods of the Eastern Zhou and the birth of the classical philosophies.