Introduction to Xiongnu:
Nomads in ancient Mongolian Plateau rose at the foot of Yinshan Mountain in Inner Mongolia today.
In 2 15 BC, Xiongnu was driven out of Hetao area by Meng Tian, the general of Qin dynasty. At the end of the Qin Dynasty and the beginning of the Han Dynasty, the Huns were powerful and could not be attacked repeatedly, which posed a great threat to the Western Han regime and controlled the western regions. In the early period of Emperor Wu of the Han Dynasty, Xiongnu was defeated by the Han army and withdrew from Monan. 1 19 BC, in the battle of Mobei, Huo Qubing "sealed the wolf in Xushan, meditated on Gu Yan and went to the Han Sea"? .
In the later years of Emperor Wu of Han Dynasty, Xiongnu defeated the Han army and regained control of Mobei. During the period of Xuan Di, Emperor Wu of the Han Dynasty, the Huns were divided and five khans contended. In 53 BC, Xie Han, the leader of the Southern Xiongnu, led the people to surrender to the Western Han Dynasty. In 36 BC, the Western Han Dynasty destroyed Zhi Zhi Khan, the northern Xiongnu.
During the Eastern Han Dynasty, Xiongnu was divided into South Xiongnu and North Xiongnu again. In 48 AD, Khan, the leader of the Southern Xiongnu, surrendered to Liu Xiu, Emperor Guangwu, and was placed in Hetao area. The northern Huns are still rebelling. In 87 AD, Xianbei defeated the Northern Xiongnu, and the locust plague occurred again in Mobei, and the Northern Xiongnu began to "chaos".
In 89 AD, Dou Xian was defeated by Xiongnu, forcing the northern Xiongnu to move westward. Ban Gu took a stone at the southern foot of Yanran (now Hangai Mountain in Mongolia) and inscribed the inscription of Feng Yanran Mountain. Southern Xiongnu established the former Zhao regime in the period of Five Hu and Sixteen States. Helian Bobo, the iron rich of Xiongnu, established the regime of Fox Summer.