Births on May 19

Paul-Armand Challemel-Lacour, French academic and politician, French Minister of Foreign Affairs (d. 1896)

Paul-Armand Challemel-Lacour (19 May 1827 – 26 October 1896) was a French statesman.

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