Portal:History of science/Selected anniversaries/May 22

May 22: International Day for Biological Diversity

• 1868 - Death of Julius Plücker, German mathematician and physicist (b. 1801)
• 1903 - Birth of Yves Rocard, French physicist (d. 1992)
• 1906 - The Wright brothers are granted U.S. patent number 821,393 for their "Flying-Machine".
• 1911 - Birth of Anatol Rapoport, Russian-American mathematical psychologist, and pianist
• 1912 - Birth of Herbert C. Brown, English-American chemist and Nobel Prize laureate (d. 2004)
• 1920 - Birth of Thomas Gold, Austrian astrophysicist (d. 2004)
• 1927 - Birth of George Andrew Olah, Hungarian-American chemist and Nobel Prize laureate
• 1983 - Death of Albert Claude, Belgian biologist and Nobel Prize laureate (b. 1899)
• 1990 - The Windows 3.0 operating system is released by Microsoft.
• 1992 - Death of Zellig Harris, American linguist (b. 1909)
• 1997 - Death of Alfred Hershey, American bacteriologist and Nobel Prize laureate (b. 1908)