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World War I Ended With the Treaty of Versailles. Germany had formally surrendered on November 11, 1918, and all nations had agreed to stop fighting while the terms of peace were negotiated.
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The Great Steel Strike of 1919 ends with capitulation by the steelworkers.
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The 18th Amendment to the U.S. Constitution becomes official. Alcoholic beverages can no longer be made, sold, or transported in the United States.
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The 19th Amendment to the U.S. Constitution becomes official. Women age twenty-one years and older now have the right to vote.
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The American Professional Football League is formed in 1920 with Jim Thorpe as its president and eleven teams. It would change its name to the National Football League in 1922.
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Harding wins 60% of the popular vote and 75% of the electoral vote. Harding wins by a landslide
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Adolf Hitler threatens to resign from the Nazi Party in Germany. He stays only when members agree to make him its official leader.
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Ford Motor Company makes its 10 millionth Model T car. About 2.5 million radios are now in use in the United States with over 500 broadcast stations.
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Inventor John Logie Baird of Scotland demonstrates a machine that sends moving images over airwaves. He calls his machine a televisor.