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President William McKinley is reelected as president, with Theodore Roosevelt in coming in second, defeating William J. Bryan by an Electoral Margin of 292 to 155.
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The first major oil discovery in Texas occurs in Beaumont.
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The first movie theatre, known as the electric theater, opens in Los Angeles, California.
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Willis Haviland Carrier, a native of Angola, New York, invents the air conditioner. His company would air condition such buildings as Madison Square Garden, The U.S Senate, and House of Representatives.
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Theodore Roosevelt wins his first election for President with a 336 to 140 win in the electoral college. This was due to the death of William McKinley.
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The first flight together by Wilbur and Orville Wright at Huffman Prairie Flying Field in Dayton, Ohio.
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The construction of the Panama Canal comes is finished when President Woodrow Wilson begins the explosion of the Gamboa Dike.
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The first moving assembly line is introduced for mass production by Ford Motor Company, allowing automobile construction time to decrease by almost 10 hours per vehicle.
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Babe Ruth makes his major league debut.
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The RMS Lusitania is launched on its maiden voyage from London to New York. The ship would be sunk by a German U-boat in 1915 during World War I, costing 1,198 people their lives.
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Great Britain gives America the Zimmerman telegram showing the offer by Germany to give Mexico back the southwest United States if they would declare war on the United States.
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After receiving the request from President Woodrow Wilson, the U.S. Congress declares war on Germany and joins World War I.
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The Treaty of Versailles is signed, ending World War I.
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The League of Nations is established with the Treaty of Versailles, ending the hostilities of the first World War. The U.S. decides not to join.
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Women are given the right to vote when the 19th Amendment to the United States Constitution and universal women's suffrage is recognized.