Under Peter the Great, Russia was proclaimed an Empire in 1721 and became recognized as a world power. Ruling from 1682 to 1725, Peter defeated Sweden in the Great Northern War, forcing it to cede West Karelia and Ingria (two regions lost by Russia in the Time of Troubles), as well as Estland and Livland, securing Russia's access to the sea and sea trade. On the Baltic Sea Peter founded a new capital called Saint Petersburg, later known as Russia's "Window to Europe". Peter the Great's reforms brought considerable Western European cultural influences to Russia. Catherine II ("the Great"), who ruled in 1762–96, extended Russian political control over the Polish-Lithuanian Commonwealth and incorporated most of its territories into Russia during the Partitions of Poland, pushing the Russian frontier westward and southward. Russia would colonize the vast Asian lands of Siberia expanding by land to the Pacific Coast of Asia, and North America. As the large realm embraced Absolute Monarchy Russia remained more conservative than its western neighbors. In the 19th century, Russia was invaded by France in 1812 but emerged as a more powerful superpower afterwards. Nonetheless industrialization did not come to Russia until the 1870s. The Medieval practice of serfdom was abolished in 1861 freeing over thirty million Russian peasants. A market economy finally emerged in the Russian Empire. However class warfare rose, and the nation was vulnerable due to rivalries with the United Kingdom, the Ottoman Empire, and the Japanese Empire.