 Complete the following phrase:  In 1710, the cities of Peterhof and Oranienbaum were founded on the southern shore of the Gulf of Finland. On 27 July 1714, near the Hanko Peninsula, the Russian Navy won the Battle of Gangut  a decisive victory over the Imperial Swedish Navy. The Russo-Swedish war ended in 1721 by the Treaty of Nystad, by which Russia received all the lands along the Neva and the Gulf of Finland, as well as Estland, Swedish Livonia and western part of the Karelian Isthmus, including Vyborg. However, Finland was returned to Sweden. The war resumed in 17881790, and the 