Oka (river)
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Oka (river)
The Oka (russian: Ока́, ) is a river in central Russia, the largest right tributary of the Volga. It flows through the regions of Oryol, Tula, Kaluga, Moscow, Ryazan, Vladimir and Nizhny Novgorod and is navigable over a large part of its total length, as far upstream as the town of Kaluga. Its length is and its catchment area is .«Река Ока»
Russian State Water Registry
The Russian capital sits on one of the Oka's tributaries—the Moskva.


Name and history

The Oka river was the homeland of the Eastern Slavic

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Nizhny Novgorod
Nizhny Novgorod ( ; rus, links=no, Нижний Новгород, a=Ru-Nizhny Novgorod.ogg, p=ˈnʲiʐnʲɪj ˈnovɡərət ), colloquially shortened to Nizhny, from the 13th to the 17th century Novgorod of the Lower Land, formerly known as Gorky (, ; 1932–1990), is the administrative centre of Nizhny Novgorod Oblast and the Volga Federal District. The city is located at the confluence of the Oka and the Volga rivers in Central Russia, with a population of over 1.2 million residents, up to roughly 1.7 million residents in the urban agglomeration. Nizhny Novgorod is the sixth-largest city in Russia, the second-most populous city on the Volga, as well as the Volga Federal District. It is an important economic, transportation, scientific, educational and cultural center in Russia and the vast Volga-Vyatka economic region, and is the main center of river tourism in Russia. In the historic part of the city there are many universities, theaters, museums and churches. The city w ...
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Moscow Oblast
Moscow Oblast ( rus, Моско́вская о́бласть, r=Moskovskaya oblast', p=mɐˈskofskəjə ˈobləsʲtʲ), or Podmoskovye ( rus, Подмоско́вье, p=pədmɐˈskovʲjə, literally "under Moscow"), is a federal subject of Russia (an oblast). With a population of 7,095,120 ( 2010 Census) living in an area of , it is one of the most densely populated regions in the country and is the second most populous federal subject. The oblast has no official administrative center; its public authorities are located in Moscow and Krasnogorsk (Moscow Oblast Duma and government), and also across other locations in the oblast.According to Article 24 of the Charter of Moscow Oblast, the government bodies of the oblast are located in the city of Moscow and throughout the territory of Moscow Oblast. However, Moscow is not named the official administrative center of the oblast. Located in European Russia between latitudes 54° and 57° N and longitudes 35° and 41° E ...
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Tarusa
Tarusa (russian: Тару́са), also known as Tarussa (), is a town and the administrative center of Tarussky District in Kaluga Oblast, Russia, located on the left bank of the Oka River, northeast of Kaluga, the administrative center of the oblast. Population: Etymology The name is from that of the Tarusa River, a tributary of the Oka; ''Tar-'' is a hydronym base characteristic of regions of ancient Baltic settlement.Е. М. Поспелов. "Географические названия мира". Москва, 1998, p. 411. According to a popular belief, the name derives from Tarusa's geohistorical position as a border town to the adjoining realm of Lithuania situated on the bank of the Oka. Questions about travelers' whereabouts from the other bank were answered with the answer ''To—Rus!'', meaning "that is Russia," eventually becoming the name of the town. History Tarusa is known to have existed since 1246, when it was the capital of one of the Upper Oka Princi ...
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Upper Oka Principalities
In Russian historiography the term Upper Oka Principalities (russian: Верховские княжества - literally: "Upper Principalities") traditionally applies to about a dozen tiny and ephemeral polities situated along the upper course of the Oka River at the turn of the 14th and 15th centuries. Nowadays, the areas concerned lie within the bounds of the Tula Oblast and Kaluga Oblast of Russia. Following the Mongol invasion of Russia of 1223-1240, the formerly mighty Principality of Chernigov gradually degenerated to a point where the descendants of Mikhail of Chernigov (c. 1185 – 1246) ruled dozens of quasi-sovereign entities. As the principalities were wedged in between the ever-expanding Grand Duchy of Lithuania to the west and the nascent Grand Duchy of Muscovy to the north, their rulers were constricted to continually fluctuate between these two major powers as buffer states. By the end of the 14th century, they were obliged to pay annual tribute to Lithuania. Th ...
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Crimean–Nogai Slave Raids In Eastern Europe
For over three centuries, the military of the Crimean Khanate and the Nogai Horde conducted slave raids primarily in lands controlled by Russia and Poland-Lithuania as well as other territories, often under the sponsorship of the Ottoman Empire. Their main purpose was the capture of slaves, most of whom were exported to the Ottoman slave markets in Constantinople or elsewhere in the Middle East. Genoese and Venetian merchants controlled the slave trade from Crimea to Western Europe. The raids were a drain of the human and economic resources of eastern Europe. They largely inhabited the "Wild Fields" – the steppe and forest-steppe land which extends about five hundred or so miles north of the Black Sea and which now contains most of population of today's south-eastern Ukraine and south-western Russia. The campaigns also played an important role in the development of the Cossacks. Estimates of the number of people affected vary: Polish historian Bohdan Baranowski assumed t ...
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Tsardom Of Russia
The Tsardom of Russia or Tsardom of Rus' also externally referenced as the Tsardom of Muscovy, was the centralized Russian state from the assumption of the title of Tsar by Ivan IV in 1547 until the foundation of the Russian Empire by Peter I in 1721. From 1551 to 1700, Russia grew by 35,000 km2 per year. The period includes the upheavals of the transition from the Rurik to the Romanov dynasties, wars with the Polish–Lithuanian Commonwealth, Sweden and the Ottoman Empire, and the Russian conquest of Siberia, to the reign of Peter the Great, who took power in 1689 and transformed the Tsardom into the Russian Empire. During the Great Northern War, he implemented substantial reforms and proclaimed the Russian Empire after victory over Sweden in 1721. Name While the oldest endonyms of the Grand Duchy of Moscow used in its documents were "Rus'" () and the "Russian land" (), a new form of its name, ''Rusia'' or ''Russia'', appeared and became common in the 15th century. ...
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Grand Duchy Of Moscow
The Grand Duchy of Moscow, Muscovite Russia, Muscovite Rus' or Grand Principality of Moscow (russian: Великое княжество Московское, Velikoye knyazhestvo Moskovskoye; also known in English simply as Muscovy from the Latin ) was a Rus' principality of the Late Middle Ages centered on Moscow, and the predecessor state of the Tsardom of Russia in the early modern period. It was ruled by the Rurik dynasty, who had ruled Rus' since the foundation of Novgorod in 862. Ivan III the Great titled himself as Sovereign and Grand Duke of All Rus' (russian: государь и великий князь всея Руси, gosudar' i velikiy knyaz' vseya Rusi). The state originated with the rule of Alexander Nevsky of the Rurik dynasty, when in 1263, his son, Daniel I, was appointed to rule the newly created Grand Principality of Moscow, which was a vassal state to the Mongol Empire (under the "Tatar Yoke"), and which eclipsed and eventually absorbed its parent duchy ...
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Zasechnaya Cherta
Zasechnaya cherta (russian: Большая засечная черта, loosely translated as Great Abatis Line or Great Abatis Border) was a chain of fortification lines, created by Grand Duchy of Moscow and later the Tsardom of Russia to protect it from the Crimean-Nogai Raids that ravaged the southern provinces of the country via the Muravsky Trail during the Russo-Crimean Wars. It was south of the original line along the Oka River. It also served as a border between the Muscovite State and the steppe nomads. As a fortification line stretching for hundreds of kilometers, the Great Abatis Border is analogous to the Great Wall of China and the Roman limes. Abatis is a military term for a field fortification made by cutting down trees. The line was built from the felled trees that were arranged as a barricade. It was also fortified by ditches and earth mounds, palisades, watch towers and natural features like lakes and swamps. The width of the abatis mounts up to several hundred ...
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Galindians
Galindians were two distinct, and now extinct, tribes of the Balts. Most commonly, Galindians refers to the Western Galindians who lived in the southeast part of Prussia. Less commonly, it is used for a tribe that lived in the area of what is today Moscow. The name "Galinda" is thought to derive from the Baltic word *''galas'' ("the end"), alluding to the fact that they settled for some time further west and further east than any other Baltic tribe. Western Galindians The Western Galindians (Old Prussian: *''Galindis'',An asterisk placed before the word means that it is reconstructed and is therefore not attested. Latin: ''Galindae'') – at first a West Baltic tribe, and later an Old Prussian clan – lived in Galindia, roughly the area of present-day Masuria but including territory further south in what would become the Duchy of Masovia. The region lay adjacent to the territory of the Yotvingians, which is today in Podlaskie Voivodeship.The name ''Galind''- is probably deriv ...
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Vyatichi
The Vyatichs or more properly Vyatichi or Viatichi (russian: вя́тичи) were a native tribe of Early East Slavs who inhabited regions around the Oka, Moskva and Don rivers. The Vyatichi had for a long time no princes, but the social structure was characterized by democracy and self-government. Like various other Slavic tribes, the Vyatichi people built kurgans on territory which belongs now to the modern Russian state. The 12th-century ''Primary Chronicle'' recorded that the Vyatichi, Radimichs and Severians "had the same customs", all lived violent lifestyles, "burned their dead and preserved the ashes in urns set upon posts beside the highways", and they did not enter monogamous marriages but practiced polygamy, specifically polygyny, instead. The ''Primary Chronicle'' names a certain tribal leader Vyatko as the forefather of the tribe, who was a Lyakh brother of Radim from whom emerged the Radimichs. The Vyatichi were mainly engaged in farming and cattle-breeding. Betwe ...
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Moskva (river)
The Moskva (russian: река Москва, Москва-река, ''Moskva-reka'') is a river running through western Russia. It rises about west of Moscow and flows roughly east through the Smolensk and Moscow Oblasts, passing through central Moscow. About southeast of Moscow, at the city of Kolomna, it flows into the Oka, itself a tributary of the Volga, which ultimately flows into the Caspian Sea. History In addition to Finnic tribes, the Moskva River is also the origin of Slavic tribes such as the Vyatichi tribe. Etymology ''Moskva'' and ''Moscow'' are two different renderings of the same Russian word ''Москва''. The city is named after the river. Finnic Merya and Muroma people, who originally inhabited the area, called the river ''Mustajoki'', in English: ''Black river''. It has been suggested that the name of the city derives from this term, although several theories exist. To distinguish the river and the city, Russians usually call the river ''Moskva-reka'' ( ...
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Moscow
Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million residents within the city limits, over 17 million residents in the urban area, and over 21.5 million residents in the metropolitan area. The city covers an area of , while the urban area covers , and the metropolitan area covers over . Moscow is among the world's largest cities; being the most populous city entirely in Europe, the largest urban and metropolitan area in Europe, and the largest city by land area on the European continent. First documented in 1147, Moscow grew to become a prosperous and powerful city that served as the capital of the Grand Duchy that bears its name. When the Grand Duchy of Moscow evolved into the Tsardom of Russia, Moscow remained the political and economic center for most of the Tsardom's history. When th ...
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