Xiongnu is a northern nation with a long history. Their ancestors lived at the junction of Siberian cold temperate forest and grassland in Eurasia. They have long hair. According to Historical Records Biography of Xiongnu, Xiongnu is a descendant of Xia Houshi, also known as Chunwei. Above Tang Yu, there are mountain glory, stubbornness and meat porridge, which live in Beiman and move with the grazing. Xiongnu in China ancient books is a powerful nomadic people who ruled the northern part of the Central Plains in the late Qin Dynasty and early Han Dynasty. Before 2 15, he was expelled from the Yellow River Hetao area and Hexi Corridor by Meng Tian. In the early years of the Western Han Dynasty, it was strong and invaded the border repeatedly. It posed a powerful threat to the Western Han regime. And control the western region. Later, he was defeated by Emperor Wu of the Western Han Dynasty, retreated to Mobei and split into five parts. During the Han and Yuan Dynasties, he divided Xie Han and his relatives into five parts. Later, the Eastern Han Dynasty was divided into the North and South Xiongnu, and the South Xiongnu surrendered to the Han Dynasty (some people thought it was peace talks). After the westward migration, the northern Xiongnu disappeared into China's ancient books. Southern Xiongnu established the former Zhao regime in the period of Five Hu and Sixteen States.
Xiongnu influenced the historical process of China at that time, which was recorded in Historical Records and Hanshu.
Modern western mainstream historians generally believe that the Huns in the north of the Central Plains are some nomadic people who like to fight and form alliances with horses, but they are only ethnic groups, not ethnic groups.