The monograph is devoted to the Iranian-speaking population of the Eurasian steppe - Alans-Asas (Yas), which from the end of the 5th to the beginning of the HS century. were part of the state formations of Noma-das of both Turkic and Hungarian and Proto-Mongolian origin and constituted a significant layer among the settled population of the steppe and forest steppe), known in written sources under generalizing names - anti, carriers, burtas and brodniks.