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  Supreme Court breaks up Standard Oil
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  1st eastbound US transcontinental flight lands in Jacksonville, Florida
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  16th Amendment, establishing an income tax--Passed by Congress on July 2, 1909, and ratified February 3, 1913
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  Henry Ford develops the modern assembly line
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  Federal Reserve Act
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  ABC Powers Conference-- the South American countries of Argentina, Brazil and Chile, which are seen as three of the most powerful and wealthy countries in South America.
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  World War I begins in Europe
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  Federal Trade Commission created
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  Clayton Antitrust Act enacted
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  Postage stamp costs 2 cents.
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  1 millionth Ford car rolls off the assembly line at the River Rouge plant in Detroit
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  US National Park Service implemented
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  US declares war with Germany
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  Patent given for Raggedy Ann doll
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  Influenza pandemic
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  Time zones are officially established by an act of the United States Congress with daylight savings time to go into effect on March 31.
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  USA overtakes Europe as total industrial output
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  The population of the USA is 105 million
Eight million USA citizens own a car - 
  
  Earle Dickson invents the band-aid
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  Alcohol is outlawed ("Prohibition")
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  KDKA (Pittsburgh) is the first commercial radio station in the USA
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  Rudolph Valentino becomes the first male sex symbol
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  43 billion cigarettes are sold in the USA
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  Western Union transmitted its first halftone photograph
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  General Motors introduces cars for every market brackets
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  The British and US governments signed an agreement formalizing Britain’s war deb obligations to the US.
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  The USA Congress passes the Exclusion Act prohibiting futher immigration from Japan.
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  Nellie Tayloe Ross becomes Governor of Wyoming
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  Walter Percy founds Chrysler Auto Corporation
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  Films with synchronized voice and music are introduced.
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  Babe Ruth makes 70K/year as highest paid baseball player.