Events
1804 - Juno, one of the largest main belt asteroids, was discovered by Karl Ludwig Harding.
1914 - The last passenger pigeon, a female named Martha, dies in captivity in the Cincinnati Zoo.
1979 - The American space probe Pioneer 11 becomes the first spacecraft to visit Saturn when it passes at a distance of 21,000 km.
Births
1848 - Auguste-Henri Forel, Swiss entomologist
1856 - Sergei Winogradsky, Russian scientist
1877 - Francis William Aston, Nobel laureate in Chemistry
1888 - Andrija Å tampar, Croatian physician
Deaths
1600 - Tadeáš Hájek, Czech physician
1988 - Luis Alvarez, American physicist and Nobel laureate
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