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  The Leauge of Nations was established by the ratification of the Treaty of Versailles
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  women are given the right to vote by the 19th amendment
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  American Professional football leauge is formed
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  national quota system was made for the amount of incoming immigrants
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  first miss america pageant was held
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  teapot dome scandal begins
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  Yankee Stadium begins construction
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  Warner Brothers Pictures is incorporated.
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  The IBM corporation is founded.
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  Future Civil Rights leader Martin Luther King jr. is born
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  highest continuous paved road in the United States, the Trail Ridge Road
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  The 21st Amendment to the U.S. Constitution is passed
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  The Master's golf tournament is held for the first time
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  The United States pulls its troops from Haiti.
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  Hoover Dam is dedicated by President Roosevelt.
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  Porgy and Bess, the opera by George Gershwin
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  inaugurates the all-Pullman Super Chief passenger train service
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  Gone with the Wind is published by Margaret Mitchell.
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  Wallace H. Carothers patents the polymer
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  The Naval Expansion Act passes.