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The League of Nations was created, however, the United States never joined.
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The Ku Klux Klan was revitalized.
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The Palmer Raids lead to the arrest and deportation of 6,000 foreign aliens suspected radical leftists.
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The Volstead Act prohibited the sale, manufacture, and transport of any alcoholic beverages.
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Women were allowed to vote.
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A horse-drawn cart exploded injuring hundreds and killing thirty-eight people.
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The stock market increased by 20% every year.
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J. Edgar Hoover appointed as the head of the Bureau of Investigation
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The classic novel "The Great Gatsby" is published by American author F. Scott Fitzgerald.
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The Kelly Act authorized the Post Office to contract airman delivery.
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The Butler Act prohibits evolution from being taught in public schools is passed in Tennessee
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The first television transmitter is developed by John Logie Baird in Great Britain.
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Sears Robuck opens its first retail store in Chicago, Illinois
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Amelia Earhart flies across the Atlantic Ocean, becoming the first woman to do so successfully.
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Alexander Fleming discovers penicillin introducing the age of antibiotics.