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Vice President Theodore Roosevelt becomes President of the United States after the assassination of William McKinley.
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The Wright Brothers successfully fly
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Wilson becomes the 28th President of the US
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First long-distance telephone is used
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The Lusitania cruise ship with US passengers is sunk by German U boats.
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President Wilson is re-elected as president.
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US declares war on Germany and Austria-Hungary
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Worldwide influenza that took the lives of about 20 million by 1920 and 500,000 in the US.
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Armistice is signed
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League of Nations meets for the first time and US is not present.
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18th Amendment to Constitution is ratified preventing sale, transportation, and manufacturing of liquor.
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Women gain the right to vote with the 19th Amendment to the Constitution.
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The US senate rejects the treaty for terms of peace after WW1