Nomadic empire
The Xiongnu were a confederation of nomadic tribes from Central Asia with a ruling class of unknown origin and other subjugated tribes. They lived on the Mongolian Plateau between the 3rd century BC and the 460s AD, their territories including modern day Mongolia, southern Siberia, western Manchuria, and the modern Chinese provinces of Inner Mongolia, Gansu, and Xinjiang. The Xiongnu was the first unified empire of nomadic peoples. Relations between early Chinese dynasties and the Xiongnu were complicated and included military conflict, exchanges of tribute and trade, and marriage treaties. When Emperor Qin Shihuang drove them away from the south of the Yellow River, he built the famous Great Wall to prevent the Xiongnu from coming back.
History of Tuva
The Xiongnu ruled over the area of Tuva prior to 200 AD. The identity of the ethnic core of Xiongnu has been a subject of varied hypotheses and proposals by scholars including Mongolic and Turkic. At this time a people known to the Chinese as Dingling inhabited the region. The Chinese recorded the existence of a tribe of Dingling origin named "Dubo" in the eastern Sayans. This name is recognized as being associated with the Tuvan people and is the earliest written record of them. The Xianbei defeated the Xiongnu and they in turn were defeated by the Rouran. From around the end of the 6th century, the Göktürks held dominion over Tuva up until the 8th century when the Uyghurs took over.