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. 2/KLOC-was expelled from the Hetao area of the Yellow River by Meng Tian 0/5 years ago, and it became strong in the early Western Han Dynasty 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, in the Eastern Han Dynasty, it was divided into the northern and southern Xiongnu, and the southern Xiongnu surrendered to the Han Dynasty. After the westward migration, the northern Xiongnu disappeared into China's ancient books. So there's something wrong with your story.