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			 Date | 
			 Event(s) | 
		
	
| 1  | 1908  | - 1908: The gyrocompass invented by Elmer A. Sperry.
 
- 1908: Cellophane invented by Jacques E. Brandenberger.
 
- 1908: Model T automobile first sold.
 
- 1908: J W Geiger and W Müller invent the geiger counter.
 
- 1908: Fritz Haber invents the Haber Process for making artificial nitrates.
 
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| 2  | 1909  | - 1909: William Taft president of the USA 1909-1913.
 
- 1909: Instant coffee invented by G. Washington.
 
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| 3  | 1910  | - 1910: Thomas Edison demonstrated the first talking motion picture.
 
- 1910: Georges Claude displayed the first neon lamp to the public on December 11, 1910, in Paris.
 
- 1910: George V.  Ruler of England 1910-1936.  House of Windsor (name adopted Jul 17, 1917): 2nd son of Edward VII, married Princess Mary of Teck.  Accession, Jan 20, abdication, Dec 10.
 
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| 4  | 1911  | - 1911: Charles Franklin Kettering invents the first automobile electrical ignition system.
 
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| 5  | 1912  | - 1912: Motorized movie cameras invented, and replaced hand-cranked cameras.
 
- 1912: The first tank patented by Australian inventor De La Mole.
 
- 1912: Clarence Crane created Life Savers candy in 1912.
 
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| 6  | 1913  | - 1913: Woodrow Wilson president of the USA 1913-1921.
 
- 1913: The crossword puzzle invented by Arthur Wynne.
 
- 1913: The Merck Chemical Company patented, what is now known as, ecstasy.
 
- 1913: Mary Phelps Jacob invents the bra.
 
- 1913: Gideon Sundback invents the modern zipper.
 
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| 7  | 1914  | - 1914: World War I begins.  Triple Alliance: Germany, Italy, and Austria-Hungary vs. Triple Entente: Britain, France, and Russia. The United States joined on the side of the Triple Entente in 1917.
 
- 1914: Garrett A. Morgan invents the Morgan gas mask.
 
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| 8  | 1915  | - 1915: Eugene Sullivan and William Taylor co-invented Pyrex in New York City.
 
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| 9  | 1916  | - 1916: Radio tuners invented that received different stations.
 
- 1916: Stainless steel invented by Henry Brearly.
 
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| 10  | 1918  | - 1918: World War I ends.
 
- 1918: Charles Jung invented fortune cookies.
 
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| 11  | 1919  | - 1919: The pop-up toaster invented by Charles Strite.
 
- 1919: Short-wave radio invented.
 
- 1919: The arc welder invented.
 
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| 12  | 1920  | - 1920: The tommy gun patented by John T Thompson.
 
- 1920: The Band-Aid invented by Earle Dickson
 
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| 13  | 1921  | - 1921: Warren Harding president of the USA 1921.  Warren Harding dies of an embolism in San Francisco.  He had taken ill on 31 Jul 1921.
 
- 1921: Calvin Coolidge president of the USA 1921-1929.  Calvin Coolidge, vice president under Warren Harding, sworn in as president the day after Harding dies.
 
- 1921: Artificial life begins -- the first robot built.
 
- 1921: John Larson, a University of California medical student, invented the modern lie detector (polygraph), used by police since 1924.
 
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| 14  | 1922  | - 1922: Insulin invented by Sir Frederick Grant Banting.
 
- 1922: The first 3-D movie (spectacles with one red and one green lens) is released.
 
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| 15  | 1923  | - 1923: Garrett A. Morgan invents a traffic signal.
 
- 1923: The television or iconoscope (cathode-ray tube) invented by Vladimir Kosma Zworykin.
 
- 1923: John Harwood invented the self-winding watch.
 
- 1923: Clarence Birdseye invents frozen food.
 
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| 16  | 1924  | - 1924: The dynamic loudspeaker invented by Rice and Kellogg.
 
- 1924: Notebooks with spiral bindings invented.
 
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| 17  | 1925  | - 1925: The mechanical television a precursor to the modern television, invented by John Logie Baird.
 
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| 18  | 1926  | - 1926: Robert H. Goddard invents liquid-fueled rockets.
 
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| 19  | 1927  | - 1927: JWA Morrison invents the first quartz crystal watch.
 
- 1927: Philo Taylor Farnsworth invents a complete electronic TV system.
 
- 1927: Technicolor invented.
 
- 1927: Erik Rotheim patents an aerosol can.
 
- 1927: Warren Marrison developed the first quartz clock.
 
- 1927: Philip Drinker invents the iron lung.
 
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| 20  | 1928  | - 1928: Scottish biologist Alexander Fleming discovers penicillin.
 
- 1928: Bubble gum invented by Walter E. Diemer.
 
- 1928: Jacob Schick patented the electric shaver.
 
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| 21  | 1929  | - 1929: Herbert Hoover president of the USA 1929-1933.
 
- 1929: American, Paul Galvin invents the car radio.
 
- 1929: Yo-Yo re-invented as an American fad.
 
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| 22  | 1930  | - 1930: Scotch tape patented by 3M engineer Richard G. Drew.
 
- 1930: The "differential analyzer", or analog computer invented by Vannevar Bush at MIT in Boston.
 
- 1930: Frank Whittle and Dr Hans von Ohain both invent a jet engine.
 
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| 23  | 1931  | - 1931: Harold Edgerton invented stop-action photography.
 
- 1931: Germans Max Knott and Ernst Ruska co-invent the electron microscope.
 
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| 24  | 1932  | - 1932: Polaroid photography invented by Edwin Herbert Land.
 
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| 25  | 1933  | - 1933: Franklin Roosevelt president of the USA 1933-1945.
 
- 1933: Frequency modulation (FM radio) invented by Edwin Howard Armstrong.
 
- 1933: Stereo records invented.
 
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| 26  | 1934  | - 1934: Charles Darrow claims he invented the game Monopoly.
 
- 1934: Joseph Begun invents the first tape recorder for broadcasting - first magnetic recording.
 
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| 27  | 1935  | - 1935: Wallace Carothers and DuPont Labs invents nylon (polymer 6.6.).
 
- 1935: The first canned beer made.
 
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| 28  | 1936  | - 1936: Bell Labs invents the voice recognition machine.
 
- 1936: Samuel Colt patents the Colt revolver.
 
- 1936: Edward VIII.  Ruler of England 1936.  House of Windsor (name adopted Jul 17, 1917): Eldest son of George V.
 
- 1936: 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.
 
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| 29  | 1937  | - 1937: Chester F. Carlson invents the photocopier.
 
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| 30  | 1938  | - 1938: The ballpoint pen invented by Ladislo Biro.
 
- 1938: Roy J. Plunkett invented tetrafluoroethylene polymers or Teflon.
 
- 1938: Nescafe or freeze-dried coffee invented.
 
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| 31  | 1939  | - 1939: World War II begins.  Axis Powers: Germany, Italy, Japan vs. Major Allied Powers: United States, Great Britain, France, and Russia.  1939-1945.
 
- 1939: Igor Sikorsky invents the first successful helicopter.
 
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| 32  | 1940  | - 1940: Peter Goldmark invents modern color television system.
 
- 1940: Karl Pabst invents the jeep.
 
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| 33  | 1941  | - 1941: Konrad Zuse's Z3, the first computer controlled by software.
 
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| 34  | 1942  | - 1942: John Atanasoff and Clifford Berry built the first electronic digital computer.
 
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| 35  | 1943  | - 1943: Richard James invents the slinky.
 
- 1943: James Wright invent silly putty.
 
- 1943: Swiss chemist, Albert Hofmann discovered the hallucinogenic properties of LSD.
 
- 1943: Emile Gagnan and Jacques Cousteau invent the aqualung.
 
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| 36  | 1944  | - 1944: The kidney dialysis machine invented by Willem Kolff.
 
- 1944: Synthetic cortisone invented by Percy Lavon Julian.
 
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| 37  | 1945  | - 1945: World War II ends.
 
- 1945: Harry Truman president of the USA 1945-1953.
 
- 1945: The atomic bomb invented.
 
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| 38  | 1946  | - 1946: The microwave oven invented by Percy Spencer.
 
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