premise: The February Revolution , known in Soviet historiography as the February Bourgeois Democratic Revolution, was the first of two revolutions which took place in Russia in 1917. The main events of the revolution took place in and near Petrograd , the then-capital of Russia, where longstanding discontent with the monarchy erupted into mass protests against food rationing on 23 February Old Style . Revolutionary activity lasted about eight days, involving mass demonstrations and violent armed clashes with police and gendarmes, the last loyal forces of the Russian monarchy. On 27 February O.S.  mutinous Russian Army forces sided with the revolutionaries. Three days later the Czar Nicholas II abdicated, ending Romanov dynastic rule and the Russian Empire. A Russian Provisional Government under Prince Georgy Lvov replaced the Russian Council of Ministers. The revolution appeared to break out without any real leadership or formal planning. Russia had been suffering from a number of economic and social problems, which compounded after the start of World War I in 1914. Disaffected soldiers from the city's garrison joined bread rioters, primarily women in bread lines, and industrial strikers on the streets. As more and more troops deserted, and with loyal troops away at the Front, the city fell into chaos, leading to the overthrow of the Czar. In all, over 1,300 people were killed during the protests of February 1917.
hypothesis: Old Style happened first