Title: Skrytye korni russkoĭ revoli͡ut͡sii
Subjects: Revolutionaries, Biography, Political prisoners, Socialism, History, Populism
Places: Russia, Soviet Union
People: Ekaterina Konstantinovna Breshko-Breshkovskai͡a (1844-1934)
Time periods: Revolution, 1905-1907, Revolution, 1917-1921