Uusimaa was, along with the rest of Finland, held by the Kingdom of Sweden from the twelfth century and then ceded to Imperial Russia in the War of Finland in 1809.
Uusimaa was held by the Kingdom of Sweden from the twelfth century. This was along with the rest of Finland. Uusimaa was ceded to Imperial Russia in the War of Finland in 1809. This was along with the rest of Finland, then.