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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
1818 – Adolph Wilhelm Hermann Kolbe, German chemist
1842 – Alphonse Francois Renard, Belgian geologist
1913 – Albert Ellis, American psychologist
1918 – Martin Ryle, English radio astronomer and Nobel Prize laureate
1924 – Fred Singer, American scientist
1933 – Rodney Cotterill, Danish-English physicist
1948 – John K. Reed, American coral biologist
Deaths
1735 – Peter Artedi, Swedish naturalist
1911 – Auguste Michel-Lévy, French geologist
1940 – Julius Wagner-Jauregg, Austrian neuroscientist and Nobel Prize laureate