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William McKinley was shot on the grounds of the Pan-American Exposition at the Temple of Music in Buffalo, New York.
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After McKinley's assignation, vice president Theodore Roosevelt takes office.
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The Wright brothers invented, built and flew the first aircraft.
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500 dead or missing and destroys about almost half the city of San Francisco.
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William Howard Taft is inaugurated as the 27th president.
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Woodrow Wilson is inaugurated as the 28th president.
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Seventeenth Amendment to the Constitution is ratified, providing for the direct election of U.S. senators by popular vote rather than by the state legislatures.
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World War I: U.S. enters World War I, declaring war on Germany and Austria-Hungary
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Wilson's second inauguration.
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Armistice ending World War I is signed.
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League of Nations meets for the first time.
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Eighteenth Amendment to the Constitution is ratified, prohibiting the manufacture, sale, and transportation of liquor.
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Nineteenth Amendment to the Constitution is ratified, granting women the right to vote.
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Treaty of Versailles, outlining terms for peace at the end of World War I