1977 – The last natural case of smallpox was discovered in Merca district, Somalia. The WHO and the CDC consider this date the anniversary of the eradication of smallpox.
1984 – "Baby Fae" receives a heart transplant from a baboon.
1994 – Announcement that Andrew Wiles correctly proved Fermat’s last theorem.
1874 – Martin Lowry, British chemist
1817 – Nikolaus Joseph von Jacquin, Austrian scientist
1943 – Marc Aurel Stein, Hungarian-born archaeologist
1957 – Gerty Cori, Nobel Prize laureate
1989 – Charles J. Pedersen, American chemist and Nobel Prize laureate