Finnish War: Swedish-Finnish troops, led by Captain Karl Wilhelm Malmi, conquer the city of Kuopio from Russians after the Battle of Kuopio.

The Finnish War was fought between the Kingdom of Sweden and the Russian Empire from 21 February 1808 to 17 September 1809 as part of the Napoleonic Wars. As a result of the war, the eastern third of Sweden was established as the autonomous Grand Duchy of Finland within the Russian Empire. Other notable effects were the Swedish parliament's adoption of a new constitution and the establishment of the House of Bernadotte, the new Swedish royal house, in 1818.

Kuopio is a city in Finland and the regional capital of North Savo. It is located in the Finnish Lakeland. The population of Kuopio is approximately 125,000, while the sub-region has a population of approximately 147,000. It is the 8th most populous municipality in Finland, and the seventh most populous urban area in the country.

The Battle of Kuopio was fought between Swedish and Russian forces at Kuopio in Northern Savonia on 12 May 1808 during the Finnish War.

May 12 is the 132nd day of the year in the Gregorian calendar; 233 days remain until the end of the year.