Portal:History of science/Selected anniversaries/July 11
- 1709 - Birth of Johan Gottschalk Wallerius, Swedish chemist (d. 1785)
- 1735 - Mathematical calculations suggest that it was on this day that Pluto moved from the ninth to the eighth most distant planet from the Sun for the last time before 1979
- 1893 - The first cultured pearl is obtained by Kokichi Mikimoto
- 1909 - Death of Simon Newcomb, American astronomer and mathematician (b. 1835)
- 1916 - Birth of Aleksandr Mikhailovich Prokhorov, Russian physicist, Nobel laureate (d. 2002)
- 1924 - Birth of César Lattes, Brazilian physicist (d. 2005)
- 1931 - Birth of Tullio Regge, Italian physicist
- 1950 - Birth of Pervez Hoodbhoy, Pakistani nuclear physicist
- 1967 - Birth of Jeff Corwin, American naturalist and TV personality