The History of U.S. Business By emmons.taylor20 Period: Jan 1, 1800 to Sep 2, 2013 United States Business History Apr 12, 1861 Civil War Begins Jan 1, 1867 Typewriter Invented and Sold Jan 1, 1879 Electric Light Invented and Sold Jan 1, 1885 Petrol-Engine Car Invented and Sold Jan 10, 1910 Hallmark gets its start Jan 1, 1913 Ford introduces the assembly line Jul 28, 1914 World War 1 begins Aug 15, 1914 The Panama Canal Opens Jan 1, 1922 New York's WEAF broadcasts the first radio ad Sep 4, 1929 Beginning of The Great Depression Oct 24, 1929 The Great Crash of 1929 Aug 4, 1930 King Kullen, the first U.S. supermarket, opens Dec 17, 1935 The first DC-3 flight Mar 1, 1936 Hoover Dam is completed Jan 1, 1939 World War 2 started Apr 20, 1939 The first commercial television broadcast Jan 1, 1946 The baby boom begins Jan 1, 1947 Three Bell Labs scientists invent the transistor Jul 17, 1955 Disneyland Opens Jun 29, 1956 Eisenhower creates the interstates Jan 1, 1957 The first Japanese car, a Toyota, is sold in the U.S. Jul 29, 1958 Eisenhower signs the act creating NASA Jan 1, 1961 Kroc buys McDonald's Jan 1, 1962 The first Wal-Mart opens Jan 1, 1963 Valium is introduced Jan 1, 1971 Intel invents the single-chip microprocessor Jun 18, 1971 Southwest Airlines begins flying Jan 1, 1973 The OPEC oil shock Apr 1, 1973 Federal Express begins operations Jan 1, 1981 Microsoft is tapped to provide the IBM operating system Jan 1, 1985 ISM Band- WiFi- released for unlicensed use Oct 19, 1987 The Black Monday Crash Sep 11, 2001 Bombing of The World Trade Center Oct 23, 2001 First line of Apple iPod's released