Births on May 11

Jean-Baptiste Carpeaux, French sculptor and painter (d. 1875)

Jean-Baptiste Carpeaux (11 May 1827 – 12 October 1875) was a French sculptor and painter during the Second Empire under Napoleon III.

7 Mar

Carmen de Patagones
Brazilian marines unsuccessfully attack the temporary naval base of Carmen de Patagones, Argentina.
7 Apr

Friction match
John Walker, an English chemist, sells the first friction match that he had invented the previous year.
4 Jul

New York State
Slavery is abolished in New York State.
17 Aug

Pope Leo XII
Dutch King Willem I and Pope Leo XII sign concord
17 Oct

Teatro alla Scala di Milano
Bellini's third opera, Il pirata, is premiered at Teatro alla Scala di Milano