The October Revolution[a] (commonly referred to as the Bolshevik Revolution,[2] the October Uprising, or Red October), officially known in Soviet historiography as the Great October Socialist Revolution,[b] was a revolution in Russia led by the Bolshevik Party of Vladimir Lenin that was instrumental in the larger Russian Revolution of 1917–1923. It took place through an armed insurrection in Petrograd on 25 October (Old Style, O.S.; 7 November, New Style or N.S.) 1917.
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