Births on February 22

Józef Kremer, Polish historian and philosopher (d. 1875)

Józef Kremer (February 22, 1806, Kraków - June 2, 1875 Kraków), was a Polish historian of art, a philosopher, an aesthetician and a psychologist.

23 Mar

Corps of Discovery
After traveling through the Louisiana Purchase and reaching the Pacific Ocean, explorers Lewis and Clark and their "Corps of Discovery" begin their arduous journey home.
27 Jun

British invasions of the River Plate
British forces take Buenos Aires during the first British invasions of the River Plate.
12 Aug

British invasions of the River Plate
Santiago de Liniers, 1st Count of Buenos Aires re-takes the city of Buenos Aires, Argentina after the first British invasion.
8 Oct

Congreve rocket
Napoleonic Wars: Forces of the British Empire lay siege to the port of Boulogne in France by using Congreve rockets, invented by Sir William Congreve.
9 Oct

War of the Fourth Coalition
Prussia begins the War of the Fourth Coalition against France.