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assassination of archduke Ferdinand and his wife in Sarajevo
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the Falaba becomes the first passenger ship sunk by German U- boats
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second battle of Ypres
First use of poison gas -
The Lusitania is sunk by German U-boats
128 American Civilians are killed -
Battle of Verdun begins
Longes battle of the War -
The Sussex is sunk by German U-boat
results in the issue of the Sussex pledge -
Battle of the Somme begins
First use of tanks in combat by the British (failure) -
President Woodrow Wilson is reelected
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Battle of Verdun ends
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Germany revokes the Sussex Pledge and resumes unrestricted submarine warfare
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U.S. breaks off diplomatic relations with Germany
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the Zimmermann telegram is published in U.S. newspapers
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Tsar Nicolas 2 abdicates the Russian throne during Russian Revolution
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U.S. Declares war on Germany
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Congress passes the espionage act
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Third Battle of Ypres begins
at end 250,000 are left dead -
U.S. declares war on Austria Hungary
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Battle of Cambrai begins
first British offensive designed around the use of the tank -
President Wilson makes the "fourteen points" speech to congress
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russia and Germany sign the Treaty of Brest Litovsk, removing Russia from the war
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Tsar Nicholas 2 and his family are murdered by the Bolsheviks
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Kaiser Wilhelm 2 of Germany abdicates the throne
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Armistice day
fighting ceases at 11 am over 8.5 million soldiers dead -
peace negotiations begin in Paris
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the Treaty of Versailles is signed
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U.S. signs separate peace treaty with Austria
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U.S. signs peace treaty with Germany
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U.S. signs peace treaty with Hungary