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Henry ford perfects mass production
Henry Ford installs the first moving assembly line for the mass production of an entire automobile. His innovation reduced the time it took to build a car from more than 12 hours to one hour and 33 minutes. -
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Harlem Renaissance begins
The movement is considered to have begun about 1918 and continued to 1937. Its most productive period was in the 1920s, as the movement's vitality suffered during the Great Depression (1929–39). -
Women gain the right to vote
Women's suffrage, or the right of women to vote, was established in the United States over the course of the late 19th and early 20th centuries -
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The Palmer Raids
The Palmer Raids were a series of raids conducted in November 1919 and January 1920 by the United States Department of Justice under the administration of President Woodrow Wilson to capture and arrest suspected socialists, especially anarchists and communists, and deport them from the United States -
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Prohibition begins
The Prohibition era was the period from 1920 to 1933 when the United States prohibited the production, importation, transportation, and sale of alcoholic beverages -
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Teapot Dome Scandal
The Teapot Dome scandal was a political corruption scandal in the United States involving the administration of President Warren G. Harding. -
Sacco and Vanzetti are convicted
The jury convicted Sacco and Vanzetti of first-degree murder and they were sentenced to death by the trial judge. Anti-Italianism, anti-immigrant, and anti-anarchist bias were suspected as having heavily influenced the verdict -
Scopes trial
The Scopes trial, formally The State of Tennessee v. John Thomas Scopes, and commonly referred to as the Scopes Monkey Trial, was an American legal case from July 10 to July 21, 1925, in which a high -
Charles lindbergh crosses the atlantic
Charles A. Lindbergh completed the first solo, nonstop transatlantic flight in history, flying his Spirit of St. Louis from Long Island, New York, to Paris, France. -
Kellogg-Briand pact signed
Fifteen nations signed the pact at Paris. Signatories included France, the United States, the United Kingdom, Ireland, Canada, Australia, New Zealand, South Africa, India, Belgium, Poland, Czechoslovakia, Germany, Italy and Japan. -
Black Tuesday stock market crash
The Wall Street crash is most associated with October 24, 1929, called "Black Thursday", when 12.9 million shares were traded on the stock exchange in a single day (compared to an average of 4 million), and October 29, 1929, "Black Tuesday", when some 16.4 million shares were traded.