Births on June 21

Carlo Matteucci, Italian physicist and neurophysiologist (d. 1868)

Carlo Matteucci (20 or 21 June 1811 – 25 June 1868) was an Italian physicist and neurophysiologist who was a pioneer in the study of bioelectricity.

5 Mar

Battle of Barrosa
Peninsular War: A French force under the command of Marshal Victor is routed while trying to prevent an Anglo-Spanish-Portuguese army from lifting the Siege of Cádiz in the Battle of Barrosa.
5 May

Battle of Fuentes de Oñoro
In the second day of fighting at the Peninsular War Battle of Fuentes de Oñoro the French army, under Marshall André Masséna, drive in the Duke of Wellington's overextended right flank, but French frontal assaults fail to take the town of Fuentes de Oñoro and the Anglo-Portuguese army holds the field at the end of the day.
16 May

Battle of Albuera
Peninsular War: The allies Spain, Portugal and United Kingdom, defeat the French at the Battle of Albuera.
7 Nov

Battle of Tippecanoe
Tecumseh's War: The Battle of Tippecanoe is fought near present-day Battle Ground, Indiana, United States.
28 Nov

Piano Concerto No. 5 (Beethoven)
Beethoven's Piano Concerto No. 5 in E-flat major, Op. 73, premieres at the Gewandhaus in Leipzig.