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Our Family Genealogy Pages

Henry DENISON
  - 1847

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Timeline

1917
1923
1929
1936
1942
1948


 
 




   Year  Event(s)
1 1918 
  • Charles Jung invented fortune cookies.
2 1919 
  • Short-wave radio invented.
  • The arc welder invented.
  • The pop-up toaster invented by Charles Strite.
3 1920 
  • The Band-Aid invented by Earle Dickson
  • The tommy gun patented by John T Thompson.
4 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.
5 1922 
  • Insulin invented by Sir Frederick Grant Banting.
  • The first 3-D movie (spectacles with one red and one green lens) is released.
6 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.
7 1924 
  • Notebooks with spiral bindings invented.
  • The dynamic loudspeaker invented by Rice and Kellogg.
8 1925 
  • The mechanical television a precursor to the modern television, invented by John Logie Baird.
9 1926 
  • Robert H. Goddard invents liquid-fueled rockets.
10 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.
11 1928 
  • Bubble gum invented by Walter E. Diemer.
  • Jacob Schick patented the electric shaver.
  • Scottish biologist Alexander Fleming discovers penicillin.
12 1929 
  • American, Paul Galvin invents the car radio.
  • Herbert Hoover president of the USA 1929-1933.
  • Yo-Yo re-invented as an American fad.
13 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.
14 1931 
  • Germans Max Knott and Ernst Ruska co-invent the electron microscope.
  • Harold Edgerton invented stop-action photography.
15 1932 
  • Polaroid photography invented by Edwin Herbert Land.
16 1933 
  • Franklin Roosevelt president of the USA 1933-1945.
  • Frequency modulation (FM radio) invented by Edwin Howard Armstrong.
  • Stereo records invented.
17 1934 
  • Charles Darrow claims he invented the game Monopoly.
  • Joseph Begun invents the first tape recorder for broadcasting - first magnetic recording.
18 1935 
  • The first canned beer made.
  • Wallace Carothers and DuPont Labs invents nylon (polymer 6.6.).
19 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.
20 1937 
  • Chester F. Carlson invents the photocopier.
21 1938 
  • Nescafe or freeze-dried coffee invented.
  • Roy J. Plunkett invented tetrafluoroethylene polymers or Teflon.
  • The ballpoint pen invented by Ladislo Biro.
22 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.
23 1940 
  • Karl Pabst invents the jeep.
  • Peter Goldmark invents modern color television system.
24 1941 
  • Konrad Zuse's Z3, the first computer controlled by software.
25 1942 
  • John Atanasoff and Clifford Berry built the first electronic digital computer.
26 1943 
  • Emile Gagnan and Jacques Cousteau invent the aqualung.
  • James Wright invent silly putty.
  • Richard James invents the slinky.
  • Swiss chemist, Albert Hofmann discovered the hallucinogenic properties of LSD.
27 1944 
  • Synthetic cortisone invented by Percy Lavon Julian.
  • The kidney dialysis machine invented by Willem Kolff.
28 1945 
  • Harry Truman president of the USA 1945-1953.
  • The atomic bomb invented.
  • World War II ends.
29 1946 
  • The microwave oven invented by Percy Spencer.
30 1947 
  • Bardeen, Brattain, and Shockley invent the transistor.
  • British/Hungarian scientist, Dennis Gabor, developed the theory of holography.
  • Earl Silas Tupper patented the Tupperware seal.
  • Mobile phones first invented.
31 1948 
  • Robert Hope-Jones invented the Wurlitzer jukebox.
  • The Frisbee® invented by Walter Frederick Morrison and Warren Franscioni.
  • Velcro ® invented by George de Mestral.
  
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