According to historical records, Xia, Shang and Zhou dynasties were all feudal dynasties, with monarchs and princes ruling separately, and Xia was the first hereditary clan feudal dynasty. There are a certain number of bronze and jade ritual vessels in the cultural relics of the Xia Dynasty, dating from the late Neolithic Age to the early Bronze Age.
Extended data:
Due to the lack of historical data, it is difficult to verify the specific situation of the military system in Xia Dynasty, so we have to get a glimpse of it from the history of war. When describing the war between Shi Gan and Hu Shi, it is mentioned that Xia Hou summoned Liu Qing, who is the floorboard of the Sixth Route Army. Liu Qing each led an army, and Xia Hou had the highest military power, commanding Liu Qing, indicating that Xia had a centralized military power system.
In the Xia Dynasty, society began to form classes, and works of art also became divided. The utensils used by the lower class people are practical in shape and simple in decoration, and develop in a simple aesthetic direction.
However, the ritual vessels favored by the nobles in the upper class have evolved in the direction of complex ornamentation and ever-changing shapes. The decorative patterns of the lower utensils are mostly simple geometric patterns, or there are some themes related to agricultural production such as livestock patterns and fish patterns.
Baidu Encyclopedia-Xia Dynasty