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archduke Ferdinand was assassinated
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germany declares war on france and russia
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allies defeat the germans at the first battle
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Austria-Hungary declares war on Serbia
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ottoman empire declares war on the allies
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attack on Lusitania
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united states entered the war
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British intercept Zimmerman telegram
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russians leave the war
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Versailles is signed ending world war one
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president wilsion issues his "fourteen points"
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Germany agrees to an armistice and fighting ends