Russian Empire
The Russian Empire, also known as Imperial Russia or simply Russia, was an empire that existed across Eurasia and North America from 1721, following the end of the Great Northern War, until the Republic was proclaimed by the Provisional Government that took power after the February Revolution of 1917.
Russian Empire
In the aftermath of the Russo-Turkish War, 1806–12, and the ensuing Treaty of Bucharest (1812), the eastern parts of the Principality of Moldavia, an Ottoman vassal state, along with some areas formerly under direct Ottoman rule, came under the rule of the Empire. This area (Bessarabia) was among the Russian Empire's last territorial increments in Europe. At the Congress of Vienna (1815), Russia gained sovereignty over Congress Poland, which on paper was an autonomous Kingdom in personal union with Russia. However, this autonomy was eroded after an uprising in 1831, and was finally abolished in 1867.