paragraph_text: The Russian Empire (Russian: Россійская Имперія, tr. Rossiyskaya Imperiya) or simply Russia (Russian: Россія, tr. Rossiya) 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.

paragraph_text: Potapy Emelianov (1884, Ufa, Guberniya, Russian Empire – 14 August 1936, Karelian ASSR, USSR) was a Russian Catholic priest and confessor who entered into communion with Rome from the Old Ritualist tradition of Russian Orthodoxy with his entire parish.

paragraph_text: On January 25, 1918 the third meeting of the All-Russian Congress of Soviets renamed the unrecognized state the Soviet Russian Republic. The Treaty of Brest-Litovsk was signed on March 3, 1918, giving away much of the land of the former Russian Empire to Germany in exchange for peace during the rest of World War I. On July 10, 1918, the Russian Constitution of 1918 renamed the country the Russian Socialist Federative Soviet Republic. By 1918, during the Russian Civil War, several states within the former Russian Empire seceded, reducing the size of the country even more.

paragraph_text: Paul Armont (1874–1943) was a Russian-born French playwright and screenwriter. He also collaborated with the Swiss writer Marcel Gerbidon. He was born Dimitri Petrococchino in Rostov in the Russian Empire.

paragraph_text: Zaum () are the linguistic experiments in sound symbolism and language creation of Russian-empire Futurist poets such as Velimir Khlebnikov and Aleksei Kruchenykh.

paragraph_text: Angel Ivanovich Bogdanovich (, October 14 [o.s. 2], 1860, Vitebsk Governorate, Russian Empire (modern Belarus) - April 6 [o.s. March 24], 1907, Saint Petersburg, Russian Empire) was a Russian literary critic, publicist and social activist, originally a narodnik, later an active member of the Legal Marxists' political group.

paragraph_text: In 1820-1830’s the Ottoman Empire endured a number of strikes which challenged the existence of the country. The Greek Uprising (began in the spring of 1821) evidenced internal and military weakness of Ottoman Empire and caused severe atrocities by Ottoman military forces (see Chios massacre). The disbandment of the centuries-old Janissary corps by Sultan Mahmud II on 15 June 1826 (Auspicious Incident) was a good deed for the country in the longer term, but it has deprived the country from its army forces for the nearest future. In 1827 the allied Anglo-Franco-Russian fleet destroyed almost all the Ottoman naval forces during the Battle of Navarino. In 1830 Greece becomes an independent state after 10 years of independence war and the Russo-Turkish War of 1828–1829. According to the Treaty of Adrianople (1829) Russian and European commercial ships were authorized to freely pass through Black Sea straits, Serbia received autonomy, and Danubian Principalities (Moldavia and Walachia) became the territories under Russian protection.

paragraph_text: Austria-Hungary was a multinational state and one of Europe's major powers at the time. Austria-Hungary was geographically the second-largest country in Europe after the Russian Empire, at , and the third-most populous (after Russia and the German Empire). The Empire built up the fourth-largest machine building industry of the world, after the United States, Germany, and the United Kingdom. Austria-Hungary also became the world's third largest manufacturer and exporter of electric home appliances, electric industrial appliances and power generation apparatus for power plants, after the United States and the German Empire.

paragraph_text: Irène Mélikoff (7 November 1917 – 8 January 2009) was a Russian-born French Turkologist with Azerbaijani ancestry. She was born in Petrograd, Russian Empire.

paragraph_text: The Nihilist is a 1905 American short silent film directed by Wallace McCutcheon, Sr.. It takes place in the Russian Empire and relates the story of a woman who joins the Nihilist movement and commits a suicide attack against the Governor's palace to avenge her husband who died because of police repression.

paragraph_text: Swedish Ingria (, ‘land of Ingrians’) was a dominion of the Swedish Empire from 1583 to 1595 and then again from 1617 to 1721, when it was ceded to the Russian Empire in the Treaty of Nystad.

paragraph_text: Bogdan Petrovich Gordeev (; June 21, 1894, Kharkiv, Kharkov Governorate, Russian Empire - September 7, 1914), also known as Bozhidar (), was a Russian futurist poet of Ukrainian origin.

paragraph_text: As the Grand Duchy of Finland was part of the Russian Empire from 1809 to 1918, a number of Russian speakers have remained in Finland. There are 33,400 Russian-speaking Finns, amounting to 0.6% of the population. Five thousand (0.1%) of them are late 19th century and 20th century immigrants or their descendants, and the remaining majority are recent immigrants who moved there in the 1990s and later.[citation needed] Russian is spoken by 1.4% of the population of Finland according to a 2014 estimate from the World Factbook.

paragraph_text: Saint Petersburg Governorate (, "Sankt-Peterburgskaya guberniya"), or Government of Saint Petersburg, was an administrative division (a "guberniya") of the Tsardom of Russia, the Russian Empire, and the Russian SFSR, which existed during 1708–1927.

paragraph_text: Father Nicholas Bock (), SJ (13 November 1880, Saint Petersburg, Russian Empire – 27 February 1962, New York City, United States) was a Russian diplomat who later became a Catholic priest.

paragraph_text: All Summer and Winter Olympic medals of the Soviet Union and the Russian Empire were inherited by Russia, but not combined together with the medal count of the Russian Federation.

paragraph_text: Pihtsusköngäs, also known as the "Niagara of Finland" or the "King of Finnish waterfalls" is the largest waterfall in all of Finland. Its maximum height is . It is located in the Käsivarsi Wilderness Area, about from the village Kilpisjärvi within the municipality of Enontekiö. It is accessible by following the Nordkalottleden Trail, an 800 kilometer hiking route than runs through Finland, Sweden and Norway.

paragraph_text: At the beginning of World War I, East Prussia became a theatre of war when the Russian Empire invaded the country. The Russian Army encountered at first little resistance because the bulk of the German Army had been directed towards the Western Front according to the Schlieffen Plan. Despite early success and the capture of the towns of Rastenburg and Gumbinnen, in the Battle of Tannenberg in 1914 and the Second Battle of the Masurian Lakes in 1915, the Russians were decisively defeated and forced to retreat. The Russians were followed by the German Army advancing into Russian territory.

paragraph_text: Vladimir Karapetoff (January 8, 1876 in Saint Petersburg, Russian Empire – January 11, 1948) was a Russian-American electrical engineer, inventor, professor, and author.

paragraph_text: The Alaska Purchase (Russian: Продажа Аляски, tr. Prodazha Alyaski) was the United States' acquisition of Alaska from the Russian Empire on March 30, 1867, by a treaty ratified by the United States Senate, and signed by President Andrew Johnson.

Question: When did the country containing the Pihtsusköngäs waterfall join the Russian Empire?
Answer: 1809