|  | Year | Event(s) | 
| 1 | 1911 | Charles Franklin Kettering invents the first automobile electrical ignition system.
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| 2 | 1912 | Clarence Crane created Life Savers candy in 1912.Motorized movie cameras invented, and replaced hand-cranked cameras.The first tank patented by Australian inventor De La Mole.
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| 3 | 1913 | Gideon Sundback invents the modern zipper.Mary Phelps Jacob invents the bra.The crossword puzzle invented by Arthur Wynne.The Merck Chemical Company patented, what is now known as, ecstasy.Woodrow Wilson president of the USA 1913-1921.
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| 4 | 1914 | Garrett A. Morgan invents the Morgan gas mask.
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| 5 | 1915 | Eugene Sullivan and William Taylor co-invented Pyrex in New York City.
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| 6 | 1916 | Radio tuners invented that received different stations.Stainless steel invented by Henry Brearly.
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| 7 | 1918 | Charles Jung invented fortune cookies.
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| 8 | 1919 | Short-wave radio invented.The arc welder invented.The pop-up toaster invented by Charles Strite.
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| 9 | 1920 | The Band-Aid invented by Earle DicksonThe tommy gun patented by John T Thompson.
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| 10 | 1921 | Artificial life begins -- the first robot built.Calvin Coolidge president of the USA 1921-1929.  Calvin Coolidge, vice president under Warren Harding, sworn in as president the day after Harding dies.John Larson, a University of California medical student, invented the modern lie detector (polygraph), used by police since 1924.Warren Harding president of the USA 1921.  Warren Harding dies of an embolism in San Francisco.  He had taken ill on 31 Jul 1921.
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| 11 | 1922 | Insulin invented by Sir Frederick Grant Banting.The first 3-D movie (spectacles with one red and one green lens) is released.
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| 12 | 1923 | Clarence Birdseye invents frozen food.Garrett A. Morgan invents a traffic signal.John Harwood invented the self-winding watch.The television or iconoscope (cathode-ray tube) invented by Vladimir Kosma Zworykin.
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| 13 | 1924 | Notebooks with spiral bindings invented.The dynamic loudspeaker invented by Rice and Kellogg.
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| 14 | 1925 | The mechanical television a precursor to the modern television, invented by John Logie Baird.
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| 15 | 1926 | Robert H. Goddard invents liquid-fueled rockets.
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| 16 | 1927 | Erik Rotheim patents an aerosol can.JWA Morrison invents the first quartz crystal watch.Philip Drinker invents the iron lung.Philo Taylor Farnsworth invents a complete electronic TV system.Technicolor invented.Warren Marrison developed the first quartz clock.
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| 17 | 1928 | Bubble gum invented by Walter E. Diemer.Jacob Schick patented the electric shaver.Scottish biologist Alexander Fleming discovers penicillin.
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| 18 | 1929 | American, Paul Galvin invents the car radio.Herbert Hoover president of the USA 1929-1933.Yo-Yo re-invented as an American fad.
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| 19 | 1930 | Frank Whittle and Dr Hans von Ohain both invent a jet engine.Scotch tape patented by 3M engineer Richard G. Drew.The "differential analyzer", or analog computer invented by Vannevar Bush at MIT in Boston.
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| 20 | 1931 | Germans Max Knott and Ernst Ruska co-invent the electron microscope.Harold Edgerton invented stop-action photography.
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| 21 | 1932 | Polaroid photography invented by Edwin Herbert Land.
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| 22 | 1933 | Franklin Roosevelt president of the USA 1933-1945.Frequency modulation (FM radio) invented by Edwin Howard Armstrong.Stereo records invented.
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| 23 | 1934 | Charles Darrow claims he invented the game Monopoly.Joseph Begun invents the first tape recorder for broadcasting - first magnetic recording.
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| 24 | 1935 | The first canned beer made.Wallace Carothers and DuPont Labs invents nylon (polymer 6.6.).
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| 25 | 1936 | Bell Labs invents the voice recognition machine.Edward VIII.  Ruler of England 1936.  House of Windsor (name adopted Jul 17, 1917): Eldest son of George V.George VI.  Ruler of England 1936-1952.  House of Windsor (name adopted Jul 17, 1917): 2nd son of George V, Duke of York; married Lady Elizabeth Bowes-Lyon.Samuel Colt patents the Colt revolver.
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| 26 | 1937 | Chester F. Carlson invents the photocopier.
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| 27 | 1938 | Nescafe or freeze-dried coffee invented.Roy J. Plunkett invented tetrafluoroethylene polymers or Teflon.The ballpoint pen invented by Ladislo Biro.
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| 28 | 1939 | Igor Sikorsky invents the first successful helicopter.World War II begins.  Axis Powers: Germany, Italy, Japan vs. Major Allied Powers: United States, Great Britain, France, and Russia.  1939-1945.
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| 29 | 1940 | Karl Pabst invents the jeep.Peter Goldmark invents modern color television system.
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| 30 | 1941 | Konrad Zuse's Z3, the first computer controlled by software.
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| 31 | 1942 | John Atanasoff and Clifford Berry built the first electronic digital computer.
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