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  U.S. presidential election, 1900: William McKinley reelected president; Theodore Roosevelt elected vice president
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  President McKinley assassinated, Vice President Roosevelt becomes the 26th President
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  U.S. Steel founded by John Pierpont Morgan
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  Theodore Roosevelt elected president for full term; Charles W. Fairbanks elected vice president
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  Acts passed to protect citizens from food poisoning.
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  Federal Bureau of Investigation established
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  William Howard Taft elected president; James S. Sherman vice president.
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  Woodrow Wilson elected president, Thomas R. Marshall, vice president. Roosevelt becomes the only third party candidate to come in second for well over a century.
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  establishing an income tax.
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  World War 1 begins
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  18th Amendment prohibiting the sale of alcohol.
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  Woman's right to vote