Births on September 15

Cyprien Tanguay, Canadian priest and historian (d. 1902)

Cyprien Tanguay (15 September 1819 – 28 April 1902) was a French Canadian priest and historian.

19 Feb

South Shetland Islands
British explorer William Smith discovers the South Shetland Islands and claims them in the name of King George III.
1 Jul

Great Comet of 1819
Johann Georg Tralles discovers the Great Comet of 1819, (C/1819 N1). It was the first comet analyzed using polarimetry, by François Arago.
7 Aug

Battle of Boyacá
Simón Bolívar triumphs over Spain in the Battle of Boyacá.