The identity of the ethnic core of Xiongnu has been a subject of varied hypotheses and some scholars, including
Paul Pelliot and
Byambyn Rinchen,
[10] insisted on a
Mongolic origin.The establishment of the
Xiongnu empire in Mongolia in the 3rd century BC marks the beginning of statehood on the territory of Mongolia.
The first significant appearance of nomads came late in the 3rd century BC, when the Chinese repelled an invasion of the
Xiongnu (Hsiung-nu in Wade–Giles romanisation) across the
Yellow River from the Gobi. A Chinese army, which had adopted Xiongnu military technology—wearing trousers and using mounted archers with stirrups—pursued the Xiongnu across the
Gobi in a
ruthless punitive expedition. Fortification walls built by various Chinese warring states were connected to make a 2,300-kilometre
Great Wall along the northern border, as a barrier to further nomadic inroads.
The founder of the Xiongnu empire was
Toumen. He was succeeded violently by his son
Modu Shanyu, who then conquered and unified various tribes. At the peak of its power, the Xiongnu confederacy stretched from
Lake Baikalin the north to the
Great Wall in the south and from the
Tian Shan mountains in the west to the
Greater Khingan ranges in the east. In the 2nd century BC the Xiongnu turned their attention westward to the region of the Altai Mountains and
Lake Balkash, inhabited by Indo-European-speaking nomadic peoples, including
Yuezhi (Yüeh-chih in Wade–Giles), who had relocated from China's present-day
Gansu Province as a result of their earlier defeat by the Xiongnu.
Endemic warfare between these two nomadic peoples reached a climax in the latter part of the 3rd century and the early decades of the 2nd century BC; the Xiongnu were triumphant. The Yuezhi then migrated to the southwest where, early in the 2nd century, they began to appear in the Oxus (the modern
Amu Darya) Valley, to change the course of history in
Bactria, Iran, and eventually India.
In 200 BC, the
Han dynasty of China launched a military campaign into the territory, attempting to subjugate the Xiongnu. However the Xiongnu forces ambushed and encircled the Han
Emperor Gao at
Baideng for seven days. Emperor Gao was forced to submit to the Xiongnu, and a treaty was signed in 198 BC recognising all the territories to the north from the Great Wall should belong to the Xiongnu, while the territory to the south of the Great Wall should belong to the Han. In addition, China was obliged to marry princesses and pay annual tribute to the Xiongnu. This "
marriage alliance" was far from peaceful, as Xiongnu raids into the fertile southern land never ceased. During the period of
Emperor Wen, Xiongnu raids advanced into
China Proper, ravaged and even besieged near its capital
Chang'an. This continued for 70 years until the reign of
Emperor Wu, whose
massive counteroffensives devastated the Xiongnu and sent them towards the road of decline.
The Xiongnu again raided northern China about 200 BC, finding that the inadequately defended Great Wall was not a serious obstacle. By the middle of the 2nd century BC, they controlled all of northern and western China north of the Yellow River. This renewed threat led the Chinese to improve their defences in the north, while building up and improving the army, particularly the cavalry, and while preparing long-range plans for an invasion of Mongolia.
By 176 BC, domain of the Xiongnu was 4,030,000 km
2 (1,560,000 sq mi) in size.
[11] Xiongnu capital (
Luut; Dragon) located on the beach
Orkhon River, Central Mongolia.
[12]
Between 130 and 121 BC, Chinese armies drove the Xiongnu back across the Great Wall, weakened their hold on Gansu Province as well as on what is now
Inner Mongolia, and finally pushed them north of the Gobi into central Mongolia. Following these victories, the Chinese expanded into the areas later known as
Manchuria,
Mongolia, the Korean Peninsula, and Inner Asia. The Xiongnu, once more turning their attention to the west and the southwest, raided deep into the Oxus Valley between 73 and 44 BC. The descendants of the Yuezhi and their Chinese rulers, however, formed a common front against the Xiongnu and repelled them.
During the next century, as Chinese strength waned, border warfare between the Chinese and the Xiongnu was almost incessant. Gradually the nomads forced their way back into Gansu and the northern part of what is now China's
Xinjiang. In about the middle of the 1st century AD, a revitalized
Eastern Han dynasty (AD 25-220) slowly recovered these territories, driving the Xiongnu back into the
Altai Mountains and the steppes north of the Gobi. During the late 1st century AD, having reestablished the administrative control over southern China and northern Vietnam that had been lost briefly at beginning of this same century, the Eastern Han made a concerted effort to reassert dominance over Inner Asia. The concept of Mongolia as an independent power north of China is seen in the letter sent by Emperor Wen of Han to
Laoshang Chanyu in 162 BC (recorded in the
Hanshu):
The Emperor of China respectfully salutes the great Shan Yu (Chanyu) of the
Hsiung-nu (Xiongnu)...When my imperial predecessor erected the Great Wall, all the bowmen nations on the north were subject to the Shan Yu; while the residents inside the wall, who wore the cap and sash, were all under our government: and the myriads of the people, by following their occupations, ploughing and weaving, shooting and hunting, were able to provide themselves with food and clothing...Your letter says:--"The two nations being now at peace, and the two princes living in harmony, military operations may cease, the troops may send their horses to graze, and prosperity and happiness prevail from age to age, commencing, a new era of contentment and peace." That is extremely gratifying to me...Should I, in concert with the Shan Yu, follow this course, complying with the will of heaven, then compassion for the people will be transmitted from age to age, and extended to unending generations, while the universe will be moved with admiration, and the influence will be felt by neighbouring kingdoms inimical to the Chinese or the Hsiung-nu...As the Hsiung-nu live in the northern regions, where the cold piercing atmosphere comes at an early period, I have ordered the proper authorities to transmit yearly to the Shan Yu, a certain amount of grain, gold, silks of the finer and coarser kinds, and other objects. Now peace prevails all over the world; the myriads of the population are living in harmony, and I and the Shan Yu alone are the parents of the people...After the conclusion of the treaty of peace throughout the world, take notice, the Han will not be the first to transgress.
[13]
In 48 AD, the Xiongnu empire was weakened as it was divided into the southern and northern Xiongnu. The northern Xiongnu migrated to the west. They established
Üeban state (160–490) in modern
Kazakhstan and
Hunnic Empire (370s–469) in Europe. The
Xianbeithat were under the Xiongnu rebelled in 93 AD, ending the Xiongnu domination in Mongolia.
Recent excavations of Xiongnu graves at the site Gol Mod in the
Khairkhan of Arkhangai province, discovered bronze decorations with images of a creature resembling the
unicorn and images of deities resembling the Greco-Roman deities. These discoveries lead to a hypothesis that the Xiongnu had relations with the Greco-Roman world 2000 years ago.
[18]