The Russian Biographical Dictionary (RBD; Russian: Русский биографический словарь)[a] is a Russian-language biographical dictionary published by the Imperial Russian Historical Society and edited by a collective with Alexander Polovtsov as the editor-in-chief. The dictionary was published in 25 volumes from 1896 to 1918 and considered one of the most comprehensive Russian biographical sources for the 19th and early 20th century period.[1]
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