The article concerns the periodization of history of the Eastern-Siberian Department of the Russian Geographical Society in the XIXth–XXIst centuries. The essential periods are emphasized, and highlighting is proved. The anchormen, influenced on the policy of the Department the most, are defined.

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7. IRSA. F. R-565. Inv. 1. Doc. 17.

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21. IRSA. F. R-565. Inv. 3. Doc. 26.

22. IRSA. F. R-565. Inv. 3. Doc. 38.

23. IRSA. F. R-600. Inv. 1. Doc. 264.

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25. IRSA. F. R-1055. Inv. 1. Doc. 5.

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