The history of China is divided into slave society, but what else is there in feudal society? What is the starting and ending time of each social stage?

China was a slave society at first, then it turned into a feudal society, then the warlords scuffled, and then the present society. Slave society began in Xia Dynasty, from Xia Dynasty to 476 BC. The Spring and Autumn Period of feudal society (770-476 BC) was a period of transition from slavery to feudalism in China. Due to the use of iron farm tools and Niu Geng, a large number of wasteland has been reclaimed, the area of cultivated land has been expanded and agricultural production has been developed.

Therefore, it is generally believed that the dividing line between the Spring and Autumn Period and the Warring States Period in 475 BC is the exact time when China entered the feudal society, the era when slavery collapsed and the Warring States Period was the era when feudalism was formed.