Events
1946 – ENIAC, the first general-purpose electronic computer, unveiled at the University of Pennsylvania.
Births
1564 – Galileo Galilei, Italian astronomer and physicist
1809 – André Dumont, Belgian geologist
1861 – Charles Edouard Guillaume, French physicist and Nobel Prize laureate
1873 – Hans von Euler-Chelpin, German-born chemist and Nobel Prize laureate
Deaths
1988 – Richard Feynman, American physicist and Nobel Prize laureate
1999 – Henry Way Kendall, American physicist and Nobel Prize laureate