A confederation, seen from outside
The Xiongnu formed the first great steppe confederation of which we have clear historical record. They flourished from about the third century BCE to the first or second century CE in what is now Mongolia, parts of northern China, Siberia and Central Asia. We do not have their own written histories. Our written evidence is mostly Chinese, especially the Records of the Grand Historian by Sima Qian and the later Book of Han, and those authors were observers on the other side of a long conflict. Because of that, descriptions of Xiongnu customs have to be read with care, and are supplemented by archaeology.
Their language is not securely identified, and neither is their ethnic makeup. They appear to have been a political association of many peoples under a dominant leadership rather than a single ethnic group. Claims connecting them to the later Huns of Europe, or to specific later peoples, are discussed by scholars but unproven.
Modun and the founding of the state
The key figure is Modun (Maodun), who became chanyu, the supreme ruler, around 209 BCE. Chinese accounts present him as a ruthless young prince who seized power from his father, trained followers through strict discipline, and then conquered neighbouring groups such as the Donghu and the Yuezhi. These stories have a moral and dramatic quality, so the details should not be taken literally. What is more certain is that around the time of the Qin collapse and the early Han, the steppe peoples were brought under a single leadership.
The confederation had a structure. The chanyu ruled from a central court, while left and right wings, led by princes, administered eastern and western territories. Chinese sources describe a system of ranked leaders and a decimal military organisation. Power depended on redistributing wealth, so the ability to obtain goods from China was important for holding the confederation together.
War and treaty with Han China
The early Han dynasty was weaker than its northern neighbour. In 200 BCE the first Han emperor, Gaozu, led an army against the Xiongnu and was trapped near Baideng, after which he made peace. The resulting arrangement, called heqin or “harmonious kinship”, usually involved sending a Han princess in marriage and regular gifts of silk, grain and other goods. Borders were treated as a rough boundary for trade and raiding. The system lasted, with interruptions, for several decades.
This approach changed under Emperor Wu (r. 141-87 BCE). From about 133 BCE the Han adopted a more aggressive policy, supported by a growing cavalry. Commanders such as Wei Qing and Huo Qubing led major expeditions into the steppe in the 120s and 110s BCE. The Han also sent Zhang Qian west to look for allies against the Xiongnu, and his travels helped to extend Chinese knowledge of Central Asia, an episode that was a key starting point for later Zhang Qian missions and the opening of Silk Road trade. The campaigns were expensive for both sides, and the Xiongnu lost the Ordos region and the Hexi Corridor, though the confederation survived.
Daily life and economy
The Xiongnu were mostly pastoral nomads, herding horses, sheep, goats, cattle and camels, and hunting. Archaeology shows they were not purely mobile. At sites such as Ivolga in Buryatia, there were fortified settlements with evidence for farming and crafts. Some groups practised agriculture, and some craft production, including iron and bronze working, took place. Chinese goods, such as silk, lacquer and bronze mirrors, appear in elite burials, showing the links with the Han. Their warfare relied on mounted archers using the composite bow, similar to practices described for other steppe nomads, including the Scythian history of the earlier period.
Burials and archaeology
Large tombs in the Noin-Ula mountains of northern Mongolia, excavated in the 1920s and again later, contained felt hangings, textiles, wooden objects and imported goods. Other cemeteries in Mongolia and Transbaikalia show many ordinary graves in stone-lined pits with coffins. Frozen conditions at some sites preserved organic materials. Study of these finds, together with ancient DNA, suggests a population with ancestry from various parts of Eurasia, supporting the view of a multi-ethnic confederation. Interpretation is still developing, and finds are not always dated with precision.
Division and decline
The Xiongnu were weakened by Han pressure, droughts, and succession conflict. In 55-53 BCE rival claimants fought each other, and one leader, Huhanye, submitted to the Han court. In 48 CE the confederation formally split into a southern branch, which settled along the Han border and served as allies, and a northern branch, which stayed on the steppe. The northern Xiongnu were defeated by Han forces and by the Xianbei in the later first century CE, and many either dispersed or moved west. Southern Xiongnu communities in northern China later played roles in the unstable centuries following the end of the Han, and some leaders established short-lived states there.
Why they matter
The Xiongnu show that steppe peoples were capable of building large political systems, drawing on exchange with settled neighbours. They shaped Chinese policy, including the walls and garrisons later described in studies of Great Wall engineering, and their pattern of a confederation held together by tribute and diplomacy appears again among later steppe powers. They also warn us about using sources written by opponents: a hostile Chinese account is a key record, but only one side of the story.