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Events
1993 – The web browser Mosaic version 1.0 is released.
Births
1692 – James Stirling, Scottish mathematician
1876 – Robert Bárány, American physician, Nobel laureate
1884 – Otto Rank, Austrian psychologist
1891 – Harold Jeffreys, English astronomer
1904 – Robert Oppenheimer, American physicist
1907 – Ivan Efremov, Russian paleontologist and author
1909 – Rita Levi-Montalcini, Italian neurologist, Nobel laureate
1910 – Norman Steenrod, American mathematician
1919 – Donald J. Cram, American chemist, Nobel laureate
1922 – Wolf V. Vishniac, American microbiologist
Deaths
1758 – Antoine de Jussieu, French naturalist
1945 – Wilhelm Cauer, German mathematician
1951 – Horace Donisthorpe, British entomologist
1980 – Fritz Strassmann, German physicist
2005 – Philip Morrison, American physicist
April 22, 2007