L.P. Lashuk (1925-1990): from ethnic history to the historical sociology

The paper deals with the analysis of the scientific heritage of ethnologist L.P. Lashuk. The development of the problem of ethnic history of the Komi and Russian population of the Pechora and Izhma, Vym, Upper Vychegda, Sysola and Luza Komi is shown. L.P. Lashuk's significant contribution as a theorist of ethnological science in the study of theory and methodology is revealed. Complex method in L.P. Lashuk's research includes deep mastering of the methodological bases of each of the involved sciences, critical analysis of materials and sources, close collaboration with specialists of related historical disciplines. L.P. Lashuk's contribution to the development of historical and sociological approach in ethnological studies, which involves the consideration of ethnicity in a wide range of social interactions is shown. The publication of L.P. Lashuk's book “Introduction to historical sociology” became one of the results of the development of these methods.