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Arch Duke Ferdinand was assasinated.
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July 28 Austria-Hungary declares war on Serbia.[4] Russia mobilizes.
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Germany declares war on Russia and mobilizes
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August 3 Germany declares war on France also Belgium denies permission for German forces to pass through to the French border
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The British Expeditionary Force arrives in France Spain declares "the strictest neutrality
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The United Kingdom declares war on Austria-Hungary
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Japan declares war on Germany
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also Russia declares war on the Ottoman Empire and
Battle of Coronel. Von Spee's German cruiser squadron defeats a Royal Navy squadron under Christopher Cradock -
Germany begins unrestricted submarine warfare against merchant vessels
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Deportation of Armenian intellectuals to Ankara, first act of the Armenian Genocide
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Treaty of London between the Entente and Italy and also Battle of Trekkopjes. The battle was at an African town.
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The British liner Lusitania is sunk by a German U-boat
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The Battle of the Somme begins, was a fight between france and British Empire
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HMHS Britannic sinks after hitting a German mine and
Francis Joseph I, Emperor of Austria and King of Hungary, dies and is succeeded by Charles I -
Battle of Rafa. The British drive the Ottomans out of Sinai
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The French relieve Agadez
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The United States declares war on Germany
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First American troops land in France
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China declares war on Germany and Austria-Hungary
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The Allies agree to establish a Supreme War Council at Versailles
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Woodrow Wilson outlines his Fourteen Points
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First known case of what will later be called Spanish Flu: Private Albert Gitchell at Camp Funston, Fort Riley, Kansas.
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Germany signs the Armistice of Compiègne
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Treaty of Versailles between the Allies and Germany: the Peace Conference opens in Paris
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Treaty of Versailles signed