Portal:History of science/Selected anniversaries/January 23

January 23:

 * 1719 - Birth of John Landen, English mathematician (d. 1790)


 * 1745 - Birth of William Jessop, English canal engineer (d. 1814)


 * 1785 - Death of Matthew Stewart, Scottish mathematician (b. 1717)


 * 1805 - Death of Claude Chappe, French telecommunications pioneer (b. 1763)


 * 1810 - Death of Johann Wilhelm Ritter, German chemist and physicist (b. 1776)
 * 1840 - Birth of Ernst Abbe, German physicist (d. 1905)


 * 1857 - Birth of Andrija Mohorovičić, Croatian seismologist (d. 1936)


 * 1862 - Birth of David Hilbert, German mathematician (d. 1943)


 * 1872 - Birth of Paul Langevin, French physicist (d. 1946)


 * 1876 - Birth of Otto Diels, German chemist, Nobel laureate (d. 1954)


 * 1907 - Birth of Hideki Yukawa, Japanese physicist, Nobel laureate (d. 1981)


 * 1918 - Birth of Gertrude B. Elion, American scientist, Nobel laureate (d. 1999)


 * 1919 - Birth of Hans Hass, Austrian zoologist and underwater scientist


 * 1929 - Birth of John Charles Polanyi, Canadian chemist, Nobel laureate


 * 1937 - Death of Orso Mario Corbino, Italian physicist (b. 1876)


 * 1960 - The bathyscaphe USS Trieste breaks a depth record by descending to 10,911 m (35,798 feet)in the Pacific Ocean


 * 1971 - Death of Fritz Feigl, Austria-born chemist (b. 1871)


 * 1988 - Death of Charles Glen King, American biochemist (b. 1896)