Portal:History of science/Selected anniversaries/March 18

March 18:

 * 1602 - Birth of Jacques de Billy, French mathematician (d. 1679)
 * 1640 - Birth of Philippe de La Hire, French mathematician and astronomer (d. 1719)
 * 1690 - Birth of Christian Goldbach, Prussian mathematician (d. 1764)
 * 1781 - Charles Messier rediscovers globular cluster M92 - 'M' stands for Messier Object
 * 1871 - Death of Augustus De Morgan, Indian-born British mathematician and logician (b. 1806)
 * 1905 - Birth of Thomas Townsend Brown, American scientist (d. 1985)
 * 1907 - Birth of John Zachary Young, British biologist (d. 1997)
 * 1907  - Death of Marcellin Berthelot, French chemist and politician (b. 1827)
 * 1935 - Birth of Ole Barndorff-Nielsen, Danish mathematician
 * 1965 - Cosmonaut Alexey Leonov, leaving his spacecraft Voskhod 2 for 12 minutes, becomes the first person to walk in space