The war between the Xia Dynasty and the Dongyi people took place in the middle and late 20th century B.C. In this war, the Xia Dynasty defeated all the Dongyi tribes and regained its prosperity. However, after Xia Qi's death, there were signs of weakness within the Xia Dynasty. After Taikang took the throne, he indulged in wine and sex and ignored political affairs, causing the internal conflicts of the Xia Dynasty to intensify. The external barbarians also rebelled. Hou Yi, the leader of the You Qiong Family, took advantage of the opportunity when Taikang was out hunting to launch a coup and seized the Xia Dynasty's regime. Taikang lost its country. Hou Yi supported Taikang's younger brother, Zhongkang, as the new emperor of the Xia Dynasty, but in fact, Zhongkang was only a puppet. After Zhongkang's death, his sons succeeded to the throne one after another. Houyi had been in the court for many years and had a full set of wings. In the end, he dismissed the prime minister and became the king himself. He was called " Houyi replaced Xia." In order to restore the rule of the Xia Dynasty, Hou Yi had launched an attack on the surrounding barbarians. In the first year of the war, the Xia Dynasty easily defeated the Huai Yi and Mo Yi. However, in the second year of the war, the Xia Dynasty encountered some resistance, and the attack on Feng Yi and Huang Yi did not go smoothly. Therefore, the war between the Xia Dynasty and Dongyi ended with the Xia Dynasty's victory, and the Xia Dynasty regained its prosperity.

The people of Henan belong to the people of Dongyi. Both document 1 and document 2 mentioned the relationship between Henan people and Dongyi people, pointing out that Henan people were most similar to Dongyi's old friends in Shandong, northern Anhui, and Huaibei in Jiangsu. In addition, document 4 also mentioned that the "Dongyi" mentioned in the early days mostly referred to the tribes in the eastern part of Henan Province, Shandong Province, and the northwestern part of Jiangsu Province. Therefore, it could be said that Henan people were Dongyi people.
The conclusion that Henan people were Dongyi people. In document 1, it was mentioned that the people of Henan belonged to Dongyi, and were most similar to the old Dongyi people of Shandong, northern Anhui, and Huaibei of Jiangsu. In addition, document 2 also mentioned that the "Dongyi" mentioned in the early days mostly referred to the tribes in the eastern part of Henan Province, Shandong Province, and the northwestern part of Jiangsu Province. Therefore, it could be said that Henan people were Dongyi people.
The Shang Dynasty originated from a branch of the Dongyi clan. They thought they were the descendants of the Xuanniao clan. The people of Yinshang and Dongyi had similar totem beliefs, which were closely related to birds. Dongyi culture was one of the important sources of Chinese civilization. It originated from the Zhongshan Area and the Yishu River basin in Shandong Province. The Dongyi culture had gone through different stages of development since the Neolith Age, including the worship of bird totems, the development of craftsmanship and architectural techniques, the emergence of ritual systems, and the formation of early countries. The people of Yinshang and Dongyi were troubled by floods and often moved their capital cities, which contributed to their martial spirit. Scholars had different opinions on whether the Shang Dynasty was Dongyi or Huaxia. During the Shang Dynasty, the debate between the Chinese and the barbarians had not yet formed, and the pre-Shang Dynasty was mainly distributed in Hebei, but it was influenced by the Yueshi culture of Dongyi. Generally speaking, the culture and beliefs of the people of Yinshang and Dongyi were somewhat similar.
The Shang Dynasty was established by Dongyi. The Shang clan was a branch of Dongyi. They moved south from the Swallow Mountain region and eventually replaced the Xia Dynasty, becoming the last dynasty established by the Dongyi tribes.
There were many theories about the ancestors of the Dongyi people. According to historical records, the ancestors of the Dongyi people could be traced back to Taihao. Taihao was a descendant of Fuxi and was also known as the East Emperor or the Green Emperor. Another theory was that the ancestors of the Dongyi people came from the Caucasians in southern Europe, the Tunguska people in the Siberian jungle, and the mixed-blood descendants of the Pacific Polynesian islanders. Another theory was that the ancestors of Dongyi people might have come from Africa or South Asia. However, these statements did not provide conclusive evidence to determine the origin of Dongyi people's ancestors. Therefore, there was no clear answer about the ancestors of the Dongyi people.
The origin of the Dongyi people could be traced back to the pre-Qin period of China, especially during the Shang and Zhou Dynasties, when the residents of the Central Plains referred to the residents of the lower reaches of the Yellow River. According to archeological research, Dongyi referred to the carrier of the Hou-Li culture and the Yueshi culture. During the Eastern Zhou Dynasty, after many years of management by Qi, Lu and other countries in Shandong, Yi and Xia gradually merged. The Dongyi culture was one of the oldest civilizations in the pre-Qin period of China. The Dongyi people were the creators and users of the oldest characters, bows, rituals, and metals in China. However, there was still some controversy and uncertainty about the specific origin of the Dongyi people. The current research had not yet given a definite answer.
The relationship between the origin of the Shang Dynasty and the Dongyi tribes was controversial. There was a view that the Shang Dynasty was a branch of the Dongyi tribes. After they came to the Central Plains, they had a conflict with the local Xia tribes and gradually developed a highly developed bronze civilization. However, this view was also questioned. The Shang Dynasty showed hostility and contempt towards Dongyi in historical records, and launched many large-scale conquests against Dongyi. The merchant had never mentioned in the oracle bone inscriptions that his bloodline was related to Dongyi. Later historical records also showed that the kingdoms that occupied the Central Plains were not friendly to Dongyi. Both Shang and Zhou had made suppressing Dongyi the most basic national policy. Therefore, the question of whether the Shang Dynasty originated from the Dongyi tribe was still inconclusive.
The war between the Xia Dynasty and Dongyi was a war that took place during the Xia Dynasty (about the middle and late 20th century B.C.). In this war, the Xia Imperial Minister led the Youguo Clan army to destroy Dongyi Han Zhuo and his Zhen Guan Clan and Zhen Xun Clan. Houyi, the leader of the Youqiong clan in Dongyi, overthrew the Xiahou clan and was soon usurped by his subordinate, Han Zhuo. Xia Wangxiang's son, Shui, was sealed in the land of Youguo tribe. In order to eliminate future troubles, Han Zhuo ordered Shui to attack Xia Wangxiang. Jiao led Youguo's army to attack Zhen Guan Clan and Diqiu, defeating Zhen Guan's army and conquering Diqiu. Emperor Xia once again fled to the Zhen Xun clan, but Jiao led his army to attack and destroy the Zhen Xun clan, eventually killing Emperor Xia. The wife of the king of Xia, Hou Min, was pregnant and ran back to her mother's house to hide in the escape. She gave birth to her son Shaokang. This war made the Xia Dynasty rich and powerful again.
The features of the ancient Dongyi people included yellow skin, black hair, eyes, medium build, and flat face. The features of Dongyi people in Shandong were high nose bridge, deep eye sockets, triangular eyes, high cheekbones, big lips, and thick body structure. The Dongyi people looked similar to the legendary dragon, so some people thought they were the descendants of the dragon. In addition, the appearance of Dongyi people was related to the variety of ancient China appearances. Generally speaking, Dongyi people's appearance might be different in different regions, but they could be generally described as yellow skin, black hair, eyes, medium build, and flat face.
The ancestor of Dongyi people was Taihao. Taihao was a descendant of Fuxi, also known as East Emperor or Green Emperor. Taihao lived in 4000 years B.C. and was one of the ancestors of the Dongyi tribe. The descendants of the Dongyi tribes continued to multiply and formed many tribes, including Chiyou and Shaohao, the eldest son of the Yellow Emperor. Shao Hao was sent by the Yellow Emperor to the largest tribe in Dongyi, the Fenghong tribe, to train. He married the daughter of the Fenghong tribe and later became the leader of the Fenghong tribe and the leader of the entire Dongyi tribe. Therefore, it could be said that the ancestor of Dongyi people was Taihao.