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What land did Sweden lose under the Peace of Uusikaupunki in 1721?
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Under the Peace of Uusikaupunki (Nystad) in 1721, which concluded the Great Northern War, Sweden was forced to cede several territories to Russia. These included the Baltic provinces of Estonia, Livonia, and Ingria, as well as the southeastern part of Finland, which included the city of Viipuri and a portion of Karelia.123