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Date |
Event(s) |
1 | 1931 | - 1931: Harold Edgerton invented stop-action photography.
- 1931: Germans Max Knott and Ernst Ruska co-invent the electron microscope.
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2 | 1932 | - 1932: Polaroid photography invented by Edwin Herbert Land.
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3 | 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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4 | 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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5 | 1935 | - 1935: Wallace Carothers and DuPont Labs invents nylon (polymer 6.6.).
- 1935: The first canned beer made.
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