About West Siberian invasions to the Trans-Urals in the Migration period

The article is devoted to testing the hypothesis on migrations of West Siberian population to the Urals in the Middle Ages based on a historiography tradition and available sources. The interest is increasing due to the distinguishing pottery and funerary innovations in the Turbasly, Nevolino and Kushnarenkovo cultures of the th th Western Trans-Urals in the 4 - 7 centuries. The emergence of barrows, narrow and deep graves, skull’s deformations, distant vessels with holes and rifling decors is often connected with the migration impulse among the West Siberian steppe-forest cultures, in particular in the Bakalskaya culture. However, arguments and synchronous sources have not been discovered in the Eastern Trans-Urals for a long time. In the article, the authors compare the funeral complexes Ustyg-1, Kozlov Mys- 2, and Ipkul’ of the Bakalskaya culture with the Ural cemeteries. As a result, they distinguish three migration waves with different types of interaction between Siberian and Ural medieval people: the first one is associated with the population that formed the Brodovo type of sites in the early 4 century; th th th the second one occurred between the 4 and the 5 centuries in the Turbasly culture area. Finally, the creators of the Karim culture included in the traditions of the Bakalskaya and Potchevash culture groups, began to form the th th Kushnarenkovo culture in the 5 and 6 centuries which later appeared in the Western Urals.