Events
1963 - Vostok 6 Mission, Cosmonaut Valentina Tereshkova becomes the first woman in space.
Births
1591 - Joseph Solomon Delmedigo, Italian physician, mathematician, and music theorist
1633 - Jean de Thévenot, French traveler and scientist
1801 - Julius Plücker, German mathematician and physicist
1806 - Edward Davy, English physician, chemist, and inventor
1826 - Constantin von Ettingshausen, Austrian geologist and botanist
1880 - Otto Eisenschiml, Austrian-American chemist
1897 - Georg Wittig, German chemist, Nobel laureate
1902 - Barbara McClintock, American geneticist, Nobel laureate (above)
1902 - George Gaylord Simpson, American paleontologist
1909 - Archie Fairley Carr, biologist
Deaths
1855 - John Gorrie, American physician
1858 - John Snow, English obstetrician
1961 - Marcel Junod, Swiss physician
1977 - Wernher von Braun, German-born rocket scientist
1981 - Jule Gregory Charney, American meteorologist