Births on May 12

Adolf von Henselt, German pianist and composer (d. 1889)

Georg Martin Adolf von Henselt (9 or 12 May 1814 – 10 October 1889) was a German composer and virtuoso pianist.

17 Feb

Battle of Mormant
War of the Sixth Coalition: The Battle of Mormant.
28 Mar

Battle of Valparaíso
War of 1812: In the Battle of Valparaíso, two American naval vessels are captured by two Royal Navy vessels of equal strength.
17 May

Monaco
Occupation of Monaco changes from French to Austrian.
25 Jul

Battle of Lundy's Lane
War of 1812: An American attack on Canada is repulsed.
25 Aug

Burning of Washington
War of 1812: On the second day of the Burning of Washington, British troops torch the Library of Congress, United States Treasury, Department of War, and other public buildings.