Sergey Platonov

Sergey Platonov in 1913. Photo by Karl Bulla

Sergey Fyodorovich Platonov (Russian: Серге́й Фёдорович Плато́нов) (28 June [16 June O.S.], 1860 – 10 January 1933) was a Russian historian who led the official St Petersburg school of imperial historiography before and after the Russian Revolution.