This paper considers items of decoration of Danubian origin of the late 6th — early 9th century found at sites in the forest zone of Eastern Europe and marking the settlement of the Slavs in the territory of what is now Belorussia and Russia. It is commonly known that, in traditional societies, female costume was fairly conservative. Items of male decoration, e.g. belt fittings, as a rule, reflect a ‘military’ fashion and are of interest for better understanding of the cultural and political trend and, therefore, of the military-political history of the early population. The distribution of Danubian objects probably reflects the penetration of the forest zone by the Slav migrants from Central Europe. These objects include small finger brooches, bracelets with hollow expanding ends, earrings with a star-like pendant and a volute at the end, lamellar round and small trapezoid pendants, and elements of belt fittings of the Avar type. In the forest zone, the set of objects of the Danubian origin of the late 6th — early 9th century is not limited by decorations. Here also Central-European spurs with inner hooks, knives with the top of the handle in the form of volutes, handmade and early wheel-made vessels of ovoid forms with a linear-wavy ornamentation are known. All these artefacts have been encountered at sites of very differing archaeological cultures including the undoubtedly non-Slavic ones as, e. g., the cultures of Dyakovo, RyazanOka, east Lithuanian barrows or cemeteries of the early Mordvins. However the mentioned set of Danubian objects can have appeared in the forest zone of Eastern Europe only together with the Slavs — neither Avars, nor Hepids or Romaions here appeared. Moreover, in the most of cases, not simply any contacts are implied but the immediate physical presence of a new foreign population, since, as the objects of female decoration are concerned, in traditional societies these ornaments are not a subject of intertribal/interregional trade. Therefore it may be supposed with a fair probability that the distribution of the Danubian set of ‘female’ objects of the late 6th — early 9th century over the forest zone of Russia and Belorussia reflects the appearance here of a wave of Slavic migrants from Central Europe. This fact in no way excludes the residence here of a Slavic and its kindred population also in the previous period.