Month → October

21
Oct

October 21, 1879 - Thomas Alva Edison's light bulb went on

22
Oct

October 22, 1881 - Birth of Clinton Davisson, discoverer of electron diffraction on crystalline surfaces

23
Oct

October 23 – Mol Day, Happy Day for Chemists!

24
Oct

October 24, 1836 – János Irinyi, presents silent and non-explosive matches

25
Oct

October 25, 1926 – Death of Antonius van den Broek, who established the direct correlation between the charge of the atomic nucleus and the periodic table

26
Oct

October 26, 1861 – Johann Philipp Reis presents the telephone he had invented

29
Oct

October 29, 1960 - Birth of Fabiola Gianotti, the first woman to be appointed CERN's Director General

30
Oct

October 30, 1975 – Death of Gustav Hertz, Nobel Prize winner for his research on the passage of electrons through a gas

31
Oct

October 31, 1794 - John Dalton presented his study on the disease that is now associated with his name, Daltonism

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