During the Napoleonic Wars, the Kingdom of Sweden had allied itself with the Russian Empire, United Kingdom and other parties against Napoleonic France. However, following the Treaty of Tilsit in 1807, Russia made peace with France. In 1808, supported by France, Russia successfully challenged Swedish control over Finland in the Finnish War. In the Treaty of Fredrikshamn on September 17, 1809, Sweden was obliged to cede all its territory in Finland east of the Torne River to Russia. The ceded territories became under Russian Empire's control and were reconstituted into the autonomic Grand Duchy of Finland, with the Russian Tsar as a Grand Duke.
In 1812, the territories of the Vyborg Governorate were transferred from Russia proper to the Grand Duchy of Finland and established as Viipuri Province. The transfer announced by Tsar Alexander I just before Christmas, on December 23, 1811 O.S. (January 4, 1812 N.S.), can be seen[vague] as a symbolic gesture and an attempt to appease the sentiment of the Finnish population, which had just experienced Russian conquest of their country by force. Siestarjoki was transferred to Saint Petersburg Governorate in 1864.
When Finland became independent from Russia in 1917, the status of Viipuri Province remained unchanged. The provincial capital, Vyborg (Swedish: Viborg, Finnish: Viipuri), was at this time the fourth largest city in Finland.
On September 1, 1939, Nazi Germany invaded Poland and started World War II. On September 17, 1939, the USSR, in accordance with the secret protocols of the Molotov–Ribbentrop Pact, invaded Poland from the east. Within months, the Soviet Union launched a war against Finland. As a result of this war, Finland was forced to cede territory, including parts of Viipuri Province, to the Soviet Union in the Moscow Peace Treaty in early 1940. Finland lost its natural border along the Rajajoki River (Swedish: Systerbäck) in the south. 22,973 km2, or 71.5 percent of the province on the Karelian Isthmus, including the cities of Viipuri and Sortavala, became part of the newly established Karelo-Finnish SSR in the Soviet Union. Following the peace treaty, the entire population of the ceded territories, more than four hundred thousand people, was evacuated to central Finland.
Winter war evacuees had returned following the Finnish offensive in 1941 and were evacuated again in 1944 after the Soviet counterattack, and the territories were repopulated by people from other parts of the Soviet Union. This time, the Karelian Isthmus became part of the Vyborgsky and Priozersky districts of the Leningrad Oblast, and only Ladoga Karelia and Border Karelia became part of the Karelo-Finnish SSR.
While Ladoga Karelia retained most of its original toponyms, the vast majority of toponyms in the Karelian Isthmus were renamed by the Soviet government around 1948. In 1945 the parts of the province that remained in Finnish hands were renamed Kymi Province, with its center at Kouvola. The Kymi Province was in turn merged with other provinces into the larger Southern Finland Province in 1997.
Maps
Provinces of Finland 1634: 1: Turku and Pori, 14: Nyland and Tavastehus, 18: Ostrobothnia, 20: Viborg and Nyslott, 21: Kexholm
Provinces of Finland 1721: 1: Turku and Pori, 14: Nyland and Tavastehus, 18: Ostrobothnia, 19: Kymmenegård and Nyslott
Provinces of Finland 1812:1: Turku and Pori, 4: Vaasa, 10: Oulu, 13: Viipuri, 14: Nyland and Tavastehus, 15: Kymmenegård, 16: Savolax and Karelia
Provinces of Finland 1831: 1: Turku and Pori, 2: Uusimaa, 3: Häme, 4: Vaasa, 6: Mikkeli, 8: Kuopio, 10: Oulu, 13: Viipuri
Provinces of Finland 1945: 1: Turku and Pori, 2: Uusimaa, 3: Häme, 4: Vaasa, 5: Kymi, 6: Mikkeli, 8: Kuopio, 10: Oulu, 11: Lapland, 12: Åland
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