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The Archduke Franz Ferdinand was assassinated sparking the beginning of the First World War
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Austria-Hungary, angered by the assassination of their Archduke Franz Ferdinand, declared war on Serbia, unraveling the beginning of World War I.
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Austria-Hungary, angered by the death of Franz Ferdinand, declared war on Serbia the very day of the assassination unraveling the beginning of World War I.
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The German unleash the deadly weapon of gas which caused millions of the deaths of World War I and leaving others scarred or paralyzed.
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The sinking of the Lusitania was caused by a German U-Boat torpedo and was on of the main causes of the US entering the war, because it was a British boat that some Americans were on.
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President Woodrow Wilson was reelected in 1916, making a pledge saying that the United States would stay out of World War I.
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The Bolsheviks, led by Lenin, overthrew the Russian government of the Czar, beginning the new communist government.
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After the event of the Zimmermann note the British message the US before the Mexicans could retaliate beginning the US experience of WWI.
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The Zimmermann note was a letter to the Mexicans, telling them to attack America, that was sent by the German Foreign Office which triggered the US into entering WWI.
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After a few years of the bloody World War I, the Great War finally comes to an end.
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After a few months of negotiation, the nations finally come up with this peace treaty. This is also the cause of WWII.
