The legend of Yanhuang emperor and other heroes, the continuous development of social production, tribal organizations are increasing. In this process of development, the relationship between relative tribes became closer and closer, and then the tribal alliance came into being. Stimulated by the private system, the military leaders at all levels of the tribal alliance constantly strengthened their war activities, and some heroes emerged. Sima Qian's five emperors chronicle was listed as the first chapter of historical records. This era of five emperors is actually a heroic era in Chinese history. Huangdi, the first of the five emperors, is the first representative of this heroic era. At that time, the families of Zhuxia had already developed to the western edge of the great plain in the north and south of the great river. The Jiang clan headed by Yandi was located in Hanoi area in the eastern foot of Taihang Mountain, and the Ji clan headed by Huangdi was located in the foreign area outside Songshan Mountain. They formed a clan alliance and continued to develop to the East. The tribes of Feng, Ying and Yan in the east also moved from Wen and Si to the surrounding areas of Dayeze. The Chiyou tribe, which was more powerful, once became the highest military leader of the eastern tribal alliance. Under the condition of increasingly close relationship between him and Yan and Huang, more and more violent armed conflicts took place. In the end, the Yan and Huang tribes United completely, and the Yellow Emperor became the highest military leader of the Xia clan. Under the command of the Yellow Emperor, he fought with Chiyou in the field of Zhuolu. As a result, Chiyou failed, and the Yellow Emperor became the supreme leader of a larger tribal alliance with Xia and Yi tribes. From then on, the Huaxia people became the core force of integrating many tribes in the Central Plains. Under such circumstances, the Yellow Emperor was revered as the common ancestor of the expanding Chinese people.
