Population of the Yakut region in the first third of the XIX century as a subject of historical and demographic research in the post-Soviet period

The paper is focused on the reviewing historical aspects of demographic changes in the Yakutsk region in the first third of the XIX century in the context of the analysis of population size. Based on the generalization of the available information collected by modern scientists in the course of research work, the idea of the social structure of the indigenous and migratory strata of the population of Yakutia in the first third of the 19th century is given. It is concluded that its numerical strength cannot be called stable. This is due to the pronounced influence of the socio-economic conditions of the region, the spread of the benefits of civilization on the life of nomadic peoples, military operations, the sanitary and epidemiological situation in the region, etc. The insufficient study of migration processes in the territory of the Yakutsk region by scientists of the post-Soviet period is emphasized. The historiographic description of the structure of the population of Yakutia in the first third of the 19th century by modern historians is reduced mainly to the presentation of data on its general composition, while age, gender, class and confessional differentiation of the inhabitants of the region is of interest.