Spring and Autumn period: The house of Zhao defeats the house of Zhi

The Spring and Autumn period was a period in Chinese history corresponding roughly to the first half of the Eastern Zhou, characterized by the gradual erosion of royal power as local lords nominally subject to the Zhou exercised increasing political autonomy. The period's name derives from the Spring and Autumn Annals, a chronicle of the state of Lu between 722 and 481 BCE, which tradition associates with Confucius.