1920s

  • Henry Ford perfects mass production

    Henry Ford perfects mass production
    Henry Ford combined interchangeable parts with subdivided labor and fluid movement of materials to create his moving assembly line in 1913. The resulting productivity gains and price cuts led manufacturers of every type to adopt Ford's innovative production methods.
  • Harlem Renaissance begins

    Harlem Renaissance begins
    the most influential movement in African American literary history. The movement also included musical, theatrical, and visual arts. The Harlem Renaissance was unusual among literary and artistic movements for its close relationship to civil rights and reform organizations.
  • Period: to

    Palmer Raids

    The bombing was just one in a series of coordinated attacks that day on judges, politicians, law enforcement officials, and others in eight cities nationwide.
  • Prohibition begins

    Prohibition begins
    when the United States prohibited the production, importation, transportation, and sale of alcoholic beverages.
  • Women are allowed to vote

    Women are allowed to vote
    the 19th Amendment was passed which allowed women to vote
  • Period: to

    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

    Sacco and Vanzetti are convicted
    It returned with a guilty verdict after a few hours of deliberation. Sacco and Vanzetti were held in prison for six years while their attorneys filed motions seeking a new trial. Some of the motions involved witnesses who had recanted their testimony.
  • Scopes trial

    Scopes trial
    high-school teacher, John T. Scopes, charged with violating state law by teaching Charles Darwin's theory of evolution.
  • Charles lindeburg crosses the Atlantic

    Charles lindeburg 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

    Kellogg-Briand pact
    an agreement to outlaw war
  • Black tuesday

    Black tuesday
    News about public utility regulation and rising interest rates in the United States and abroad led to panic selling on Black Thursday and Black Tuesday Nervous investors liquidated their holdings and the markets plummeted.