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Date |
Event(s) |
| 1 | 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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| 2 | 1940 | - 1940: Peter Goldmark invents modern color television system.
- 1940: Karl Pabst invents the jeep.
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| 3 | 1941 | - 1941: Konrad Zuse's Z3, the first computer controlled by software.
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| 4 | 1942 | - 1942: John Atanasoff and Clifford Berry built the first electronic digital computer.
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| 5 | 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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| 6 | 1944 | - 1944: The kidney dialysis machine invented by Willem Kolff.
- 1944: Synthetic cortisone invented by Percy Lavon Julian.
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| 7 | 1945 | - 1945: World War II ends.
- 1945: Harry Truman president of the USA 1945-1953.
- 1945: The atomic bomb invented.
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| 8 | 1946 | - 1946: The microwave oven invented by Percy Spencer.
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| 9 | 1947 | - 1947: British/Hungarian scientist, Dennis Gabor, developed the theory of holography.
- 1947: Mobile phones first invented.
- 1947: Bardeen, Brattain, and Shockley invent the transistor.
- 1947: Earl Silas Tupper patented the Tupperware seal.
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| 10 | 1948 | - 1948: The Frisbee® invented by Walter Frederick Morrison and Warren Franscioni.
- 1948: Velcro ® invented by George de Mestral.
- 1948: Robert Hope-Jones invented the Wurlitzer jukebox.
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| 11 | 1949 | |
| 12 | 1950 | - 1950: Korean War: United States (as part of the United Nations) and South Korea vs. North Korea and Communist China 1950-1953.
- 1950: The first credit card (Diners) invented by Ralph Schneider.
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| 13 | 1951 | - 1951: Super glue invented.
- 1951: Power steering invented by Francis W. Davis.
- 1951: Charles Ginsburg invented the first videotape recorder (VTR).
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1939 - 1951 (12 years)