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Date |
Event(s) |
| 1 | 1915 | - 1915: Eugene Sullivan and William Taylor co-invented Pyrex in New York City.
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| 2 | 1916 | - 1916: Radio tuners invented that received different stations.
- 1916: Stainless steel invented by Henry Brearly.
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| 3 | 1918 | - 1918: World War I ends.
- 1918: Charles Jung invented fortune cookies.
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| 4 | 1919 | - 1919: The pop-up toaster invented by Charles Strite.
- 1919: Short-wave radio invented.
- 1919: The arc welder invented.
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| 5 | 1920 | - 1920: The tommy gun patented by John T Thompson.
- 1920: The Band-Aid invented by Earle Dickson
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| 6 | 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: John Larson, a University of California medical student, invented the modern lie detector (polygraph), used by police since 1924.
- 1921: Artificial life begins -- the first robot built.
- 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.
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| 7 | 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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| 8 | 1923 | - 1923: Garrett A. Morgan invents a traffic signal.
- 1923: Clarence Birdseye invents frozen food.
- 1923: John Harwood invented the self-winding watch.
- 1923: The television or iconoscope (cathode-ray tube) invented by Vladimir Kosma Zworykin.
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| 9 | 1924 | - 1924: The dynamic loudspeaker invented by Rice and Kellogg.
- 1924: Notebooks with spiral bindings invented.
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| 10 | 1925 | - 1925: The mechanical television a precursor to the modern television, invented by John Logie Baird.
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| 11 | 1926 | - 1926: Robert H. Goddard invents liquid-fueled rockets.
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| 12 | 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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| 13 | 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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1915 - 1928 (13 years)