History of Russia
The war ended in 1721 when an exhausted Sweden sued for peace with Russia. Peter acquired four provinces situated south and east of the Gulf of Finland, thus securing his coveted access to the sea. There, in 1703, he had already founded the city that was to become Russia's new capital, Saint Petersburg, as a "window opened upon Europe" to replace Moscow, long Russia's cultural center. Russian intervention in the Commonwealth marked, with the Silent Sejm, the beginning of a 200-year domination of that region by the Russian Empire. In celebration of his conquests, Peter assumed the title of emperor, and the Russian Tsardom officially became the Russian Empire in 1721.
Russian Empire
Economically, the empire had a predominantly agricultural base, with low productivity on large estates worked by serfs, Russian peasants (until they were freed in 1861). The economy slowly industrialized with the help of foreign investments in railways and factories. The land was ruled by a nobility (the boyars) from the 10th through the 17th centuries, and subsequently by an emperor. Tsar Ivan III (1462–1505) laid the groundwork for the empire that later emerged. He tripled the territory of his state, ended the dominance of the Golden Horde, renovated the Moscow Kremlin, and laid the foundations of the Russian state. Emperor Peter the Great (1682–1725) fought numerous wars and expanded an already huge empire into a major European power. He moved the capital from Moscow to the new model city of St. Petersburg, and led a cultural revolution that replaced some of the traditionalist and medieval social and political mores with a modern, scientific, Europe-oriented, and rationalist system.