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1914 | 28 June - Archduke Franz Ferdinand of Austria assassinated at Sarajevo |
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1914 | 5 July - Germany's Blank Check |
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1914 | 23 July - Austria issues an ultimatum to Serbia |
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1914 | 25 July - Serbia orders mobilisation |
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1914 | 26 July - Austria starts mobilisation on Russian border |
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1914 | 26 July - Montenegro orders mobilisation |
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1914 | 28 July - Austria-Hungary declares war on Serbia and Russia |
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1914 | 31 July - Russia, Austria, Turkey announce general mobilisation |
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1914 | 1 August - Germany declares war on Russia |
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1914 | 1 August - Belgian, German and French mobilisation begins |
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1914 | 1 August - Belgian, German and French mobilisation begins |
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1914 | 2 August - German troops invade Luxembourg, Poland and France |
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1914 | 3 August - Germany declares war on France |
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1914 | 4 August - Germany declares war on and invades Belgium |
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1914 | 4 August - Great Britain declares war on Germany |
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1914 | 4 August - Great Britain declares war on Germany |
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1914 | 5 August - Austria declares war on Russia |
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1914 | 7 August - Russia invades Prussia; BEF lands at Ostend, Calais and Dunkirk |
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1914 | 7 August - Montenegro at war with Austria |
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1914 | 8 August - Montenegro declares war on Germany |
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1914 | 8 August - Serbia at war with Germany |
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1914 | 10 August - Austria invades Poland |
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1914 | 10 August - France and Great Britain declare war on Austria |
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1914 | 12 August - Austro-Hungarian troops invade Serbia |
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1914 | 14 August - Battle of the Frontiers begins |
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1914 | 18 August - President Wilson issues his "Proclamation of Neutrality" |
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1914 | 19-25 August - German destruction of the ancient city of Louvain |
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1914 | 23 August - Battle of Mons |
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1914 | 23 August - Japan declares war on Germany |
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1914 | 24 August - Germans enter France near Lille |
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1914 | 25 August - Austria at war with Japan |
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1914 | 26 August - Opening of the Battle of Tannenberg; Battle of Le Cateau |
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1914 | 28 August - Austria declares war on Belgium |
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1914 | 28 August - Battle of Heligoland |
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1914 | September - Manifesto of the Ninety-Three German Intellectuals to the Civilized World in response to the outcry over the destruction of Louvain
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1914 | 3 September - Paris placed in state of siege: Government transferred to Bordeaux |
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1914 | 6 September - First Battle of the Marne |
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1914 | 14 September - Opening of the First Battle of the Aisne; start of trench warfare |
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1914 | 24 September - German Army captures St. Mihiel |
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1914 | 25 September - Battle of Albert |
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1914 | 29 September - Antwerp bombardment begins |
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1914 | 1 October - Battle of Arras |
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1914 | 3 October - Austro-German invasion of Poland |
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1914 | 9 October - Antwerp surrenders to Germans, government removed to Ostend |
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1914 | 11 October - Battle of Flanders |
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1914 | 12 October - Battle of La Bassée, Battle of Yser |
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1914 | 18 October - First Battle of Ypres |
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1914 | 29 October - Turkey enters war on the side of Germany |
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1914 | 1 November - Battle of Coronel |
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1914 | 2 November - Russia and Serbia declare war on Turkey |
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1914 | 2 November - Second Russian invasion of Prussia |
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1914 | 5 November - Great Britain and France declare war on Turkey |
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1914 | 5 November - Cyprus annexed by Great Britain |
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1914 | 8 November - Third Austrian invasion of Serbia |
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1914 | 21 November - Anglo-Indian invasion of Mesopotamia |
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1914 | 25 November - German Field Marshal von Hindenburg calls off the Lódz offensive |
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1914 | 6 December - German troops overrun Lódz |
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1914 | 8 December - Battle of the Falkland Islands |
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1914 | 14 December - First German air raid on Britain |
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1914 | 17 December - Austrian troops beat Russians in Limanova, Poland |
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1914 | 25 December - An unofficial Christmas Truce is observed by soldiers in the trenches along the Western Front during this, the first Christmas of World War I |
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1915 | 14 January - South African forces occupy Swakopmund |
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1915 | 18 January - Japan's Twenty-One Demands on China |
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1915 | 24 January - Battle of Dogger Bank |
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1915 | 3 February - Turks make unsuccessful attack on Suez Canal |
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1915 | 4 February - Germany announces "war zone" in British waters |
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1915 | 6 February - Russians driven from East Prussia |
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1915 | 10 February - Battle of Masurian Lakes |
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1915 | 18 February - German submarine blockade begins |
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1915 | 19 February - British begin naval action against the Dardenelles |
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1915 | 8 March - Battle of Neuve Chappelle |
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1915 | 9 March - British and French forces concentrate outside the Dardanelles |
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1915 | 11 March - Britain announces blockade of German ports |
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1915 | 22 April - Second Battle of Ypres begins |
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1915 | 25 April - Allied landings at Gallipoli |
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1915 | 26 April - France, Russia, Italy and Britain conclude secret Treaty of London |
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1915 | 28 April - Massive Austro - German attacks in Galicia. Severe Russian losses |
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1915 | 2 May - Opening of great Austro-German offensive in Galicia (Gorlice-Tarnow); British South Africa troops under General Botha capture Otymbingue, German Southwest Africa |
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1915 | 4 May - Italy drops Triple Alliance with Austria-Hungary & Germany |
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1915 | 6 May - Allies attack Cape Helles, Hellespont |
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1915 | 7 May - Lusitania sunk by German U-boat off Irish coast |
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1915 | 7 May - Germans capture Libau, Russian Baltic port |
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1915 | 9 May - Artois Offensive; Battle of Aubers Ridge |
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1915 | 12 May - Croatians plunder Armenia |
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1915 | 15 May - Battle of Festubert |
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1915 | 23 May - Italy declares war on Austria-Hungary and Germany |
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1915 | 25 May - Asquith reorganizes his liberal ministry as a coalition |
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1915 | 11 June - British troops take Cameroon in Africa |
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1915 | 26 June - Battle of the Argonne |
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1915 | 29 June - First of twelve battles of the Isonzo begins on the Italian front |
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1915 | 9 July - German Southwest Africa surrenders to British South African troops |
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1915 | 21 July - Wilson begins drafting a defence program for the U.S. |
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1915 | 5 August - Warsaw captured by Germans |
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1915 | 6 August - Suvla Bay Offensive at Gallipoli |
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1915 | 9 August - Russians defeat German fleet at Gulf of Riga
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1915 | 15 August - Austro-German invasion of Serbia, Serbia suffers heavy defeats
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1915 | 19 August - Two Americans die in sinking of Arabic off Ireland |
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1915 | 21 August - Italy declares war on Turkey |
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1915 | 6 September - Tsar Nicholas takes personal command of Russian armies
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1915 | 8 September - New German offensive (Argonne) |
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1915 | 21 September - Anglo - French attacks in Macedonia |
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1915 | 22 September - Opening of Second Battle of Champagne on western front
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1915 | 25 September - Anglo-French Offensive at Artois-Loos
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1915 | 29 September - Vimy Ridge captured |
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1915 | 5 October - Allied troops land at Salonika |
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1915 | 14 October - Bulgaria at war with Serbia
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1915 | 15 October - Great Britain declares war on Bulgaria
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1915 | 17 October - France at war with Bulgaria |
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1915 | 19 October - Italy and Russia at war with Bulgaria
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1915 | 19 November - The Allies ask China to join the entente against the Central Powers
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1915 | 22 November - Anglo-Indian army repulsed by Turks at Ctesiphon, Iraq
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1915 | 4 December - Henry Ford's peace ship, Oskar II, begins voyage to Europe
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1915 | 12 December - Aristide Briand forms French war government |
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1915 | 13 December - Serbia in hands of enemy, Allied forces abandoning last positions and retiring across Greek frontier
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1915 | 15 December - Haig becomes Commander-in-Chief of British Expeditionary Force
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1915 | 18 December - 20,000 Australian and New Zealand troops withdraw from Gallipoli
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1915 | 19 December - Sir Douglas Haig, new BEF commander; beginning of the Allied withdrawal from Gallipoli
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1915 | 20 December - Anzac and Sulva Bays evacuated |
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1916 | 8 January - Gallipoli evacuated by the British |
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1916 | 10 January - Russian offensive in Kaukasus |
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1916 | 11 January - Corfu occupied by French troops |
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1916 | 25 January - Montenegro surrenders to Austria-Hungary
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1916 | 19 February - Cameroon, German colony in Africa, conquered by British forces
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1916 | 21 February - German Verdun Offensive |
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1916 | 9 March - Pancho Villa's raid on Columbus, New Mexico
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1916 | 9 March - Germany declares war on Portugal
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1916 | 15 March - Pershing starts pursuit of Villa into Mexico
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1916 | 15 March - Austria-Hungary at war with Portugal |
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1916 | 24 March - French passenger ship, Sussex, torpedoed
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1916 | 20 April - Russian troops landed at Marseilles for service on French front
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1916 | 24 April - Irish nationalists launch the Easter rebellion in Dublin, Republic declared and Patrick Pearse announced as first President |
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1916 | 4 May - Germany renounces submarine policy "Sussex Pledge"
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1916 | 6 May - Belgian troops march into Kigali, German East-Africa
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1916 | 15 May - Vimy Ridge gained by British |
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1916 | 19 May - Britain and France conclude the Sykes-Picot Agreement
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1916 | 21 May - British lose Vimy Ridge |
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1916 | 26 May - Bulgarians invade Greece |
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1916 | 31 May - Opening of Battle of Jutland |
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1916 | 2 June - The Battle of Mount Sorrel |
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1916 | 4 June - Beginning of the Russian Brusilov offensive against Austria-Hungary; Russia begins offensive in eastern Galicia
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1916 | 21 June - Allies demand Greek demobilization |
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1916 | 27 June - King Constantine orders demobilization of Greek army
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1916 | 1 July - Start of Anglo-French Somme Offensive |
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1916 | 29 July - US Marines land in Haiti |
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1916 | 30 July - Black Tom Island munitions plant destroyed; German sabotage suspected
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1916 | 1 August - Severe fighting on Isonzo Front |
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1916 | 7 August - Persia forms an alliance with Britain and Russia
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1916 | 9 August - Italian Gorizia Offensive |
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1916 | 27 August - Generals Hindenburg and Ludendorff take command of German armies
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1916 | 27 August - Italy declares war on Germany |
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1916 | 27 August - Romania declares war on Austria-Hungary
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1916 | 29 August - Germany declares war on Rumania |
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1916 | 29 August - Hindenburg becomes German Chief of Staff
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1916 | 31 August - Germany suspends submarine assaults |
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1916 | 31 August - Bulgaria and Turkey at war with Rumania
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1916 | 3 September - German Somme front is broken |
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1916 | 15 September - Tanks introduced on the Somme battlefield by the British
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1916 | 27 September - Constance of Greece declares war on Bulgaria
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1916 | 4 October - Austro-German attacks on Rumania through December (severe Rumanian losses)
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1916 | 15 October - Germany resumes U-boat attacks under search and destroy rules
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1916 | 24 October - French recapture Douaumont Fort at Verdun
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1916 | 7-9 November - Battle of the River Ancre |
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1916 | 18 November - Somme Offensive ends |
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1916 | 28 November - First German airplane raid on London
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1916 | 29 November - US occupation of Santa Domingo proclaimed; Beatty replaces Jellicoe as C-in-C of Grand Fleet
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1916 | 3 December - Gen. Robert Nivelle appointed the new French commander-in-chief
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1916 | 5 December - Asquith resigns as Prime Minister; replaced by Lloyd George
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1916 | 12 December - Nivelle becomes French Western Front C-in-C; Germans issue peace note suggesting compromise peace
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1916 | 18 December - 10 month long Battle of Verdun ends
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1917 | 1 January - Turkey declares its independence of suzerainty of European powers
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1917 | 9 January - German leaders decide to launch unrestricted U-boat warfare
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1917 | 10 January - Allies state war objectives in response to Wilson's peace note of 18 December
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1917 | 19 January - Zimmermann Telegram intercepted by Britain
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1917 | 1 February - Germany resumes unrestricted U-boat warfare
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1917 | 3 February - US severs diplomatic relations with Germany
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1917 | 24 February - Great Britain releases Zimmermann Note to US
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1917 | 26 February - Kut-el-Amara recaptured from Turks by new British Mesopotamian expedition
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1917 | 1 March - In US: Zimmermann Note released to press by State Department; Armed Ship Bill passes House
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1917 | 4 March - In US: Senate adjourns without passing Armed Ship Bill
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1917 | 11 March - British forces capture Baghdad |
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1917 | 12 March - Wilson announces arming of merchant ships by executive order
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1917 | 14 March - China breaks with Germany |
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1917 | 15 March - Culmination of "February Revolution"; Nicholas II abdicates
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1917 | 20 March - Wilson's Cabinet votes unanimously for war
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1917 | 23 March - Austrian Emperor Charles I makes a peace proposal to French President Poincare
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1917 | 26 March - Battle of Gaza begins
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1917 | 29 March - Wilson publicly calls for a national army to be "raised and maintained exclusively by selective draft"
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1917 | 2 April - Wilson delivers war address to Congress
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1917 | 6 April - US declares war on Germany |
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1917 | 7 April - Cuba and Panama at war with Germany |
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1917 | 8 April - Austria-Hungary breaks with United States
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1917 | 9 April - Start of Nivelle Offensive; Start of Arras offensive
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1917 | 9 April - Bolivia breaks with Germany |
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1917 | 12 April - Canadian Army captures Vimy Ridge |
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1917 | 16 April - Lenin arrives in Russia |
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1917 | 16 April - 2nd Battle of the Aisne begins; Chemin des Dames offensive |
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1917 | 20 April - Turkey breaks with United States |
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1917 | 9 May - Liberia breaks with Germany |
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1917 | 15 May - Petain becomes French Western Front Commander-in-Chief |
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1917 | 19 May - John Pershing given command of AEF |
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1917 | 19 May - Nicaragua breaks with Germany |
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1917 | 7 June - British attack at Messines |
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1917 | 14 June - Gen Pershing & his HQ staff arrived in Paris |
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1917 | 15 June - In US: Espionage Act |
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1917 | 18 June - Haiti breaks with Germany |
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1917 | 26 June - First US troops (1st Division) arrive in France |
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1917 | 29 June - Greece declares war on the Central Powers |
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1917 | 1 July - Russians begin offensive in Gallicia |
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1917 | 2 July - Pershing makes first request for a US army of 1,000,000 |
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1917 | 22 July - Siam at war with Germany and Austria |
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1917 | 31 July - Passchendaele offensive (Third Battle of Ypres) opens in Flanders |
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1917 | 7 August - Liberia at war with Germany |
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1917 | 14 August - China declares war on Germany and Austria |
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1917 | 1 September - Pershing establishes his general headquarters at Chaumont |
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1917 | 20 September - Costa Rica breaks with Germany |
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1917 | 21 September - Gen. Tasker H. Bliss named Chief of Staff of the United States Army |
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1917 | 29 September - Turkish Mesopotamian army captured by British |
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1917 | 3 October - In US:War Revenue Act; graduated income tax authorized |
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1917 | 6 October - Peru and Uruguay break with Germany |
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1917 | 12 October - British Offensive at Passchendaele |
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1917 | 24 October - Italian Caproretto Offensive |
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1917 | 26 October - Brazil at war with Germany |
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1917 | 7 November - Bolsheviks seize power in Russia |
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1917 | 8 November - Diaz succeeds Gen. Cadorna as Commander-in-Chief of Italian armies |
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1917 | 20 November - Massed tank attack at Cambrai |
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1917 | 27 November - Supreme Allied War Council established at Versailles |
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1917 | 1 December - German East Africa reported completely conquered |
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1917 | 7 December - Finland declares independence |
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1917 | 7 December - American declaration of War on Austria-Hungary |
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1917 | 9 December - Jerusalem captured by British |
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1917 | 10 December - Panama at war with Austria-Hungary |
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1917 | 15 December - Armistice signed between Germany and Russia at Brest-Litovsk |
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1917 | 22 December - Central Powers and Soviets open peace negotiations at Brest-Litovsk |
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1918 | 7 January - Germans move 75,000 troops from the East Front to the Western Front |
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1918 | 8 January - In US: Wilson's Fourteen Points speech to joint session of Congress |
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1918 | 25 January - Austria and Germany reject U.S. peace proposals |
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1918 | 11 February - In US: Wilson's Four Principles speech to joint session of Congress |
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1918 | 3 March - Soviet Russia and Central Powers make peace with Treaty of Brest-Litovsk |
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1918 | 7 March - Finland signs an alliance treaty with Germany |
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1918 | 21 March - Battle of Picardy; Start of German Spring Offensive |
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1918 | 26 March - Doullens Agreement gives General Foch "co-ordinating authority" over the western front |
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1918 | 28 March - German Operation 'Mars' is repulsed at Arras |
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1918 | 9 April - Battle of the Lys |
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1918 | 14 April - Foch appointed Commander-in-Chief of Allied forces on western front |
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1918 | 22 April - Battle of Zeeburgge |
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1918 | 16 May - In US: Sedition Act, amendment to Espionage Act of 1917 |
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1918 | 25 May - German U-boats make their first appearance in US waters |
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1918 | 27 May - 3rd Battle of the Aisne begins |
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1918 | 28 May - 28th Regiment of US 1st Division goes into action at town of Cantigny |
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1918 | 6 June - Battle of Belleau Wood |
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1918 | 9 June - Opening of fourth phase of 1918 German offensive (Battle of the Matz) in French sector between Noyon and Montdider |
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1918 | 2 July - Allied Supreme War Council supports intervention in Siberia |
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1918 | 4 July - Battle of Le Hamel |
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1918 | 6 July - Wilson agrees to American intervention in Siberia |
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1918 | 15 July - 2nd Battle of the Marne |
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1918 | 18 July - US & French forces launch Aisne-Marne offensive |
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1918 | 20 July - German retreat at the Marne |
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1918 | 3 August - Large-scale Allied intervention begins at Vladivostok |
|
1918 | 8 August - Amiens Offensive; Ludendorf's "Black Day" for German army |
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1918 | 10 August - 1st US Army organized under Pershing |
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1918 | 21 August - Allied breakthrough at Albert |
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1918 | 4 September - American troops land at Archangel in North Russia |
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1918 | 12 September - United States St Mihiel Offensive |
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1918 | 19 September - Opening of British offensive in Palestine (Battle of Megiddo) |
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1918 | 25 September - Brazil declares war on Austria |
|
1918 | 26 September - Meuse-Argonne offensive begins; greatest offensive of war for US forces |
|
1918 | 27 September - Canal du Nord Offensive |
|
1918 | 29 September - Bulgaria signs armistice |
|
1918 | 1 October - Arab and British forces capture Damascus from the Turks |
|
1918 | 3-4 October - Germans and Austrians send notes to Wilson requesting an armistice |
|
1918 | 5 October - Allied forces capture the Hindenburg Line |
|
1918 | 12 October - Pershing forms 2nd Army under command of General Bullard |
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1918 | 18 October - The Czechs seize Prague and renounce Hapsburg's rule |
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1918 | 21 October - Germany ceases unrestricted U-boat warfare |
|
1918 | 23 October - Italian Vittorio Veneto Offensive |
|
1918 | 26 October - General Erich Ludendorff, resigns, protesting terms of armistice |
|
1918 | 30 October - Turkey signs an armistice with the Allies |
|
1918 | 3 November - Mutiny of the German fleet at Kiel |
|
1918 | 3 November - Austria signs an armistice |
|
1918 | 3 November - Poland proclaims independence |
|
1918 | 11 November - Germany signs armistice, it goes into effect at 11 AM |
|
1918 | 12 November - Emperor Karl of Austria-Hungary abdicates, Austria becomes a republic |
|
1918 | 18 November - Wilson announces that he will attend peace conference personally |
|
1918 | 1 December - American army of occupation enters Germany |
|
1919 | 5 January - Sparticist (Communist) revolt begins in Berlin |
|
1919 | 18 January - Peace negotiations start at Paris |
|
1919 | 23 January - The Dutch government refuses the
demands of the Allies to hand over Kaiser Wilhelm II,
the dethroned German monarch who had fled to the
Netherlands
|
|
1919 | 25 January - Peace conference accepts principle of League of Nations |
|
1919 | 6 February - Germany National Assembly meets at Weimar |
|
1919 | 14 February - Draft Convenant of League of Nations completed |
|
1919 | 4 March - Founding of Comintern (Third International) at Moscow |
|
1919 | 13 March - Admiral Kolchak begins his offensive against Bolsheviks in Russian Civil War |
|
1919 | 14 March - Wilson returns to Paris after a month's absence |
|
1919 | 7 April - Allies evacuate Odessa |
|
1919 | 23 April - Wilson appeals directly to Italians in an effort to gain their support for his views on peace settlement |
|
1919 | 24 April - Italian Premier Orlando walks out of peace conference over Fiume issue |
|
1919 | 6 May - Peace conference disposes of Germany's colonies |
|
1919 | 7 May - Treaty of Versailles submitted to German delegation |
|
1919 | 21 June - German High Seas Fleet scuttled at Scapa Flow |
|
1919 | 28 June - Treaty of Versailles signed |
|
1919 | 24 August - Italian Premier Orlando walks out of peace conference over Fiume issue |
|
1921 | 27 April - Germany's liability is declared to be 6.65 billion pounds by the Reparations Commission |
|
1921 | 25 August - The United States, which never ratified
the Versailles Treaty ending World War I, finally
signs a peace treaty with Germany and Austria
|
|
1923 | 4 January - The Paris Conference on war
reparations hits a deadlock as the French insist on the
hard line and the British insist on Reconstruction
|
|
1923 | 10 January - The United States withdraws its last troops from Germany |
|
1925 | 1 December - After a seven-year occupation, 7,000 British troops evacuate Cologne, Germany |
|
1939 | 25 September - Versailles Peace Treaty forgot to
include Andorra, so Andorra & Germany finally sign an
official treaty ending WW I
|
