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After the death of William McKinley, Roosevelt became the president.
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Theodore Roosevelt defeats Alton B. Parker in the presidential election.
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A federal law that gave the Interstate Commerce Commission the power to set maximum railroad rates and extended its jurisdiction.
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William Howard Taft defeated William Jennings Bryan.
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Woodrow Wilson beat out both Theodore Roosevelt and William Taft.
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Sixteen Amendment authorizing income tax ratified
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Seventeenth Amendment providing for direct elections of Senators ratified
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The First World War starts.
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Germany sends their navy to sink a passenger ship.
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Woodrow Wilson defeated Charles Evans Hughes in the presidential election.
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After three years of World War I the United States decided to join the War.
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Germany signed an armistice which effectively ended the war.
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Eighteenth Amendment prohibits alcoholic beverages
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Warren G. Harding defeated James M. Cox in the presidential election.