Events
1991 - World Wide Web debuts as a publicly available service on the Internet.
Births
1844 - Auguste Michel-Lévy, French geologist
1932 - Dr. Maurice Rabb, Jr., African American ophthalmologist
Deaths
1639 - Martin van den Hove, Dutch scientist
1848 - Jöns Jakob Berzelius, Swedish chemist
1912 - François-Alphonse Forel, Swiss hydrologist
2004 - Colin Bibby, English ornithologist
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Events
1937 - Balinese Tiger (Panthera tigris balica) declared extinct after the last specimen was shot in 1925.
1956 - Milburn G. Apt becomes the first man to exceed Mach 3 while flying the Bell X-2. Shortly thereafter, the craft goes out of control and Apt is killed.
Births
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Births
1695 - William Borlase, English naturalist
1802 - Jean Baptiste Boussingault, French chemist
1829 - Alfred Brehm, German zoologist
1841 - François-Alphonse Forel, Swiss hydrologist
Deaths
1712 - Martin Lister, English naturalist and physician
1907 - Dmitri Mendeleev, Russian chemist
1957…
Events
1975 - Viking 1 planetary probe launched toward Mars.
1977 - Voyager 2 probe launched.
Births
1719 - Christian Mayer, Czech astronomer
1779 - Jöns Jakob Berzelius, Swedish chemist
1913 - Roger Wolcott Sperry, American neurobiologist, recipient of the Nobel Prize in Physiology or Medicine…
Events
1921 - Researchers at the University of Toronto led by biochemist Frederick Banting announce the discovery of the hormone insulin.
Births
1733 - Jeremiah Dixon, English surveyor and astronomer
1833 - Thomas George Bonney, English geologist
1848 - Loránd Eötvös, Hungarian physicist
1881…