Chach (Tashkent) and Bukhara in the Early Medieval Period, locating in the cross-roads of nomadic cattle-breeding and settled-agricultural places, has been key regions of Transoxiana. If Chach was situated in directly contact zone, then Bukhara placed near the corridors of the movements of nomadic tribes coming from the Syr-Darya and Semirech’e basins and going to South-Western part of Central Asia. It is impossible if these entire ones could not have left imprints in the historico-cultural areas. Particularly, here are said that the origin of the ruling dynasty linked with nomadic tribes and had influence in these areas, and also in other historical-cultural provinces of Transoxiana in the Early Medieval Ages.
According to Chinese chronicles Sui shu and T’ang shu, rulers K’ang (Samarkand), and the rulers of the series of the regions of Central Asia, like An (Bukhara), Ts’ao (Kabudan), Shi (Chach), Mi (Maymurgh), Ho (Kushaniya), Huo-hsün (Khorezm), Wu-ti / Mao-ti (Bitik or Vardana?), Shih (Kesh) which came from the surname Chao-wu, among which the main home was Chao-wu K’ang (Samarkand) [Bichurin, II:310; Smirnova, 1970:37]. The problem of the origin of the ruling family Chao-wu have been studied in the works of series of researchers, mainly, in written sources on this issue or somehow sayings which contradicting each-other. However, on this occasion, less attention have been paid properly to the numismatic materials, particularly they did not inflicted in the tamghas of historico-cultural regions of Central Asia. Besides, here also the iconography, commonality of the plots, symbols and legends, which are not less important, and gives chance to say generally about the formation of dynasties or their cultural-historical similarities. Thus, we stop now at these numismatical aspects.