Refers to the period of the Zhou dynasty from 771 to 256 BCE. It has two further subdivisions, Spring and Autumn Annals period and the Warring States period; the exact dating of these periods is debated amongst scholars. The Eastern Zhou period is said to have begun when the Zhou, fleeing attacking tribes, moved their capital from Xi'an to Luoyang in 771 BCE. ——AAT台湾

The period from 770 is known as the Dong (Eastern) Zhou dynasty. The Dong Zhou itself is often further subdivided into the Spring and Autumn (Chunqiu) period (770–476 bce), when China consisted of many small squabbling states, and the Warring States (Zhanguo) period (475–221 bce), when the small states consolidated into several larger units, which struggled with one another for mastery. ——Britannica Academic   @en