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Archduke Franz Ferdinand is assassinated
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Germany invades Blegium
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Period: to
World War 1
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Second Battle of Ypres
Germany used Chlorine gas -
Germany submarine sank British ship Lusitania
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First Battle of Somme
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Woodrow Wilson re-elected as President
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Zimmermann Telegram intercepted
Called for alliance between Central Powers and Mexico -
United States declares war against Central Powers
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Selective Service Act is passed
Called for all men eligable to sign up for Army -
Russia pulls out of war
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Woodrow Wilson establishes National War Labor Board
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Wilson proposes 14 Points and League of Nations
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US launches 95 ships in one day
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Austria/Hungary surrenders
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Germany surrenders
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Treaty of Versailles is signed