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.
History of Russia
After the 13th century, Moscow became a cultural center, and by the 18th century, the Tsardom of Russia had grown to become the Russian Empire, stretching from eastern Poland to the Pacific Ocean. Peasant revolts were common, and all were fiercely suppressed. Russian serfdom was abolished in 1861, but the peasants fared poorly and often turned to revolutionary pressures. In the following decades, reform efforts such as the Stolypin reforms, the constitution of 1906, and the State Duma attempted to open and liberalize the economy and political system, but the tsars refused to relinquish autocratic rule or share their power.