The collection of scientific articles was prepared based on the materials of reports read in April 2017 at the conference "100 years of the Russian Revolution" organized by St. Petersburg State Budgetary Institution "Museum "Narva Outpost." The authors raise questions about the causes of revolutionary events, explore the memories of their direct participants, the work of various organizations and institutions at this time, consider other topics related to the events of 1917 in St. Petersburg and its environs.