Portal:History of science/Selected anniversaries/April

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Selected anniversaries in April

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember



April 1:


April 2:


April 3:


April 4:


April 5:


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April 7:


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April 9:


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April 11:


April 12:


April 13:


April 14:


April 15:
  • 1854 - Death of Arthur Aikin, English chemist, mineralogist, and writer (b. 1773)


April 16:


April 17:


April 18:


April 19:
  • 1874 - Birth of Ernst Rüdin, Swiss psychiatrist, geneticist, and eugenicist (d. 1952)


April 20:


April 21:
April 22:


April 23:
  • 1901 - Birth of E.B. Ford, British ecological geneticist (d. 1988)


April 24:


April 25:


April 26:


April 27:
  • 1967 - Expo 67 officially opens in Montreal, Canada with a large opening ceremony broadcast around the world. It opens to the public the next day


April 28:
April 29:
April 30: