In accordance with the written and archaeological sources, the pastoral nomadism was a basic business of Hsiung-nu. As for the nomads of Mongolia and Transbaikalia in the later times, the Hsiung-nu bred a typical for Eurasia set of animals: sheep, cattle, horses and, more rarely, goats and camels. In addition, they had also in small proportion other species of domestic animals. The economic system of the Hsiung-nu empire was based not only on the pastoral nomadism. The Hsiung-nu developed the internal sedentarization and promoted the agrarian policy, and handicraft. They created the special settlements at the places fafourable for agriculture where they settled the immigrants from China and personers of war from the settled states. The best known settled sites of Hsiung-nu times are Ivolginsky fort and Dureny settlement in Buryatia.
A different nationality of the settled residents in the west Transbaikalia is confirmed by many arguments of the archaeological studies: (1) predominance in the materials of the Ivolginsky fort excavations of the bones of such
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('non-nomadic") animals as dog and pig; (2) fishing business; (3) construction of warmed stove-benches in the houses – kangs; (4) typical Chinese agricultural tools; (5) Chinese shapes of vessels; (6) Chinese hieroglyphes on a pottery; (7) anthropologic determinations of skills from the Ivolginsky cemetery [Гохман 1960].