Month → February

22
Feb

February 22, 1824 - Birth of Pierre Janssen, discoverer of the chemical element helium

23
Feb

February 23, 1765 - Henry Cavendish discovers hydrogen

23
Feb

February 23, 1886 - Charles Martin Hall produces the first aluminium samples with his most economical method

24
Feb

February 24, 1896 – Antoine Henri Becquerel reports to the French Academy of Sciences on the discovery of spontaneous radioactivity

25
Feb

February 25, 1896 – Birth of Ida Eva Tacke-Noddack, discovered rhenium and first proposed the idea of nuclear fission

26
Feb

February 26, 1974 - Death of Hendrika Johanna van Leeuwen, known for her contributions to the theory of magnetism

28
Feb

February 28, 1814 – Birth of Edmond Frémy, known for the salt that bears his name, although he also made great discoveries, such as the artificial ruby

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