This video summarises the major events of Russia's two revolutions of 1917 – the February Revolution that ended Tsarist rule in Russia, and the October Revolution, that brought the Bolsheviks to power. We explain the causes of Tsar Nicholas II's growing unpopularity, inclkuding the role of the mysterious Siberian mystic Rasputin, Russia's disastrous involvement in World War One, and the events on the streets of Petrograd that led to the Tsar's abdication. That summer Russia lurched from crisis t