What is Xiongnu?
Xiongnu is the general name of Han nationality for nomadic people living in Mongolian prairie in ancient times. Xiongnu is a northern nation with a long history, and its ancestors lived in the border area between Siberian cold temperate forest and grassland in Eurasia. The Huns in the ancient history of China were a powerful nomadic people who ruled the northern part of the Central Plains at the end of Qin Dynasty and the beginning of Han Dynasty.

Extended data:

The historical origin of Xiongnu;

According to legend, Huaxia and Xiongnu are of the same origin. After the collapse of the Xia Dynasty in about16th century BC, the descendants of Xia Hou Gui Lu fled to the north and became Huns after annexing other tribes.

In addition, before the ninth century BC, the descendants of the Xia royal family, the Xiongnu royal family, were mainly distributed in the Ordos Plateau east of Altai Mountain. Xiongnu is one of the descendants of the Xia royal family. After Skaitai conquered other yellow nomads, they continued to merge and grow like snowballs.

References:

Baidu encyclopedia-Xiongnu