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Date |
Event(s) |
| 1 | 1902 | - 1902: Willis Carrier invents the air conditioner.
- 1902: French physicist George Claude invents neon light.
- 1902: The lie detector or polygraph machine is invented by James Mackenzie.
- 1902: The birth of the Teddy Bear.
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| 2 | 1903 | - 1903: Edward Binney and Harold Smith co-invent crayons.
- 1903: Bottle-making machinery invented by Michael J. Owens.
- 1903: The Wright brothers invent the first gas motored and manned airplane.
- 1903: Mary Anderson invents windshield wipers.
- 1903: William Coolidge invents ductile tungsten used in lightbulbs.
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| 3 | 1904 | - 1904: Teabags invented by Thomas Suillivan.
- 1904: Benjamin Holt invents a tractor.
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| 4 | 1905 | - 1905: Albert Einstein published the Theory of Relativity and made famous the equation, E = mc2.
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| 5 | 1906 | - 1906: William Kellogg invents Cornflakes.
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| 6 | 1907 | - 1907: Color photography invented by Auguste and Louis Lumiere.
- 1907: The very first piloted helicopter was invented by Paul Cornu.
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| 7 | 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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| 8 | 1909 | - 1909: William Taft president of the USA 1909-1913.
- 1909: Instant coffee invented by G. Washington.
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| 9 | 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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| 10 | 1911 | - 1911: Charles Franklin Kettering invents the first automobile electrical ignition system.
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| 11 | 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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| 12 | 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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| 13 | 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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| 14 | 1915 | - 1915: Eugene Sullivan and William Taylor co-invented Pyrex in New York City.
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| 15 | 1916 | - 1916: Radio tuners invented that received different stations.
- 1916: Stainless steel invented by Henry Brearly.
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| 16 | 1918 | - 1918: World War I ends.
- 1918: Charles Jung invented fortune cookies.
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| 17 | 1919 | - 1919: The pop-up toaster invented by Charles Strite.
- 1919: Short-wave radio invented.
- 1919: The arc welder invented.
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| 18 | 1920 | - 1920: The tommy gun patented by John T Thompson.
- 1920: The Band-Aid invented by Earle Dickson
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| 19 | 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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| 20 | 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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| 21 | 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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| 22 | 1924 | - 1924: The dynamic loudspeaker invented by Rice and Kellogg.
- 1924: Notebooks with spiral bindings invented.
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| 23 | 1925 | - 1925: The mechanical television a precursor to the modern television, invented by John Logie Baird.
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| 24 | 1926 | - 1926: Robert H. Goddard invents liquid-fueled rockets.
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| 25 | 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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| 26 | 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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| 27 | 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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| 28 | 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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| 29 | 1931 | - 1931: Harold Edgerton invented stop-action photography.
- 1931: Germans Max Knott and Ernst Ruska co-invent the electron microscope.
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| 30 | 1932 | - 1932: Polaroid photography invented by Edwin Herbert Land.
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| 31 | 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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| 32 | 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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| 33 | 1935 | - 1935: Wallace Carothers and DuPont Labs invents nylon (polymer 6.6.).
- 1935: The first canned beer made.
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| 34 | 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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| 35 | 1937 | - 1937: Chester F. Carlson invents the photocopier.
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| 36 | 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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| 37 | 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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| 38 | 1940 | - 1940: Peter Goldmark invents modern color television system.
- 1940: Karl Pabst invents the jeep.
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| 39 | 1941 | - 1941: Konrad Zuse's Z3, the first computer controlled by software.
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| 40 | 1942 | - 1942: John Atanasoff and Clifford Berry built the first electronic digital computer.
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| 41 | 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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| 42 | 1944 | - 1944: The kidney dialysis machine invented by Willem Kolff.
- 1944: Synthetic cortisone invented by Percy Lavon Julian.
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| 43 | 1945 | - 1945: World War II ends.
- 1945: Harry Truman president of the USA 1945-1953.
- 1945: The atomic bomb invented.
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| 44 | 1946 | - 1946: The microwave oven invented by Percy Spencer.
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1902 - 1946 (44 years)