"Atlas of the Tobolsk Province" by the surveyor V. E. Filimonov as a source on the medieval history of the Siberian Tatars

The article is devoted to the role of cartographic materials in the study of the history of the Late Medieval Tatar states of Western Siberia. The subject of the study is the "Atlas" of the surveyor V. E. Filimonov, which presents a General map of the Tobolsk province with plans of 9 Siberian cities (Tobolsk, Tyumen, Tara, Berezov, Turinsk, Kurgan. Yalutorovsk, Omsk, Ishim) and 10 plans of "ancient fortifications". These medieval archaeological sites from the period of the Siberian Khanate are given by V. Filimonov with a detailed description of the events related to this area. The object of the research is the historical potential of the plans of medieval monuments presented in the Atlas. The relevance of referring to this Atlas is related to its weak introduction into scientific circulation, as well as the fact that the territory of the Tobolsk-Irtysh region remains poorly studied archaeologically. The paper uses such traditional methods for historical research as structural-descriptive, comparative and retrospective. Based on archival and other sources, the biography of the surveyor V. E. Filimonov is presented for the first time. Its role in the cartographic description of the region of the late XVIII – early XIX centuries is shown. Modern researchers especially note the high accuracy of the plans presented by the surveyor, which enhances the value of the Atlas as a historical source. The individual plans of the "ancient fortifications" presented in the Atlas are considered in detail from the point of view of their historical potential. It has been revealed that, despite some progress in the study of the medieval history of Siberia, there remains a significant number of "white spots" in its study. In this regard, further archaeological research of medieval monuments is necessary with the involvement of cartographic materials, including information from the Atlas of V. E. Filimonov.