All Events
An uprising in Petrograd brings the Peter and Paul fortress into the hands of the rebels
With his capital city in the hands of rebels, tsar Nicholas II abdicates
The Petrograd Soviet demands drastic reforms in return for supporting the proposed Provisional Government in Russia
The German authorities allow Lenin to travel home from Switzerland through Germany, hoping for Communist disruption of the Russian war effort
Lenin expounds in Petrograd the new theory of his April Theses, predicting the possibility of imminent revolution
Woodrow Wilson, president of the USA, declares war on Germany
Trotsky hurries back to Russia from exile in the United States
German U-boats sink 430 Allied and neutral merchant ships in this month alone
Canadian troops take Vimy Ridge, subsequently the site of Canada's most important war memorial
The Allies frustrate the German U-boats by introducing the convoy system
A Russian summer offensive against the Germans results in massive loss of life and territory
T.E. Lawrence and an Arab force surprise the Turkish garrison at Aqaba and win an overwhelming victory
An armed uprising in Petrograd disperses after Lenin declines to give support
Trotsky is imprisoned and Lenin flees to Finland as Russia's Provisional Government cracks down on the Bolsheviks
Prince Lvov steps down as head of the Provisional Government in Russia and is replaced by Alexander Kerensky
Haig sends British troops over the top in the third battle of Ypres
Kerensky dismisses Kornilov as commander-in-chief, antagonizing the right wing in Russia
Russian opinion polarizes, with support growing for left-wing Bolsheviks and right-wing Kadets
Trotsky, released from prison, stages a coup to win Bolshevik control of the Petrograd Soviet
Lenin, in disguise, returns from Finland to Petrograd, where he hides in the flat of a party worker
Lenin persuades the Bolshevik central committee to vote for an armed insurrection
The dancer Mata Hari is executed in France as a German spy
Ocxtober 24 - a victory at Caporetto enables the Austrian army to penetrate far into northeast Italy
Women are enlisted into Britain's army (Women's Auxiliary Corps) and navy (Women's Royal Naval Service)
The soldiers of the Petrograd garrison mutiny on being ordered to the front