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.
History of Russia
The History of Russia begins with that of the East Slavs and the Finno-Ugric peoples. The traditional beginning of Russian history is the establishment of Kievan Rus', the first united Eastern Slavic state, in 882. The state adopted Christianity from the Byzantine Empire in 988, beginning the synthesis of Byzantine and Slavic cultures that defined Orthodox Slavic culture for the next millennium. Kievan Rus' ultimately disintegrated as a state due to the Mongol invasions in 1237–1240 along with the resulting deaths of about half the population of Rus'.