Dnieper in the context of Desna (river)

The Black Sea is a marginal sea lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Romania, Russia, Turkey, and Ukraine. The Black Sea is supplied by major rivers, principally the Danube, Dnieper and Dniester. Consequently, while six countries have a coastline on the sea, its drainage basin includes parts of 24 countries in Europe.

The Black Sea, not including the Sea of Azov, covers 436,400 km (168,500 sq mi), has a maximum depth of 2,212 m (7,257 ft), and a volume of 547,000 km (131,000 cu mi).Most of its coasts ascend rapidly.These rises are the Pontic Mountains to the south, bar the southwest-facing peninsulas, the Caucasus Mountains to the east, and the Crimean Mountains to the mid-north.In the west, the coast is generally small floodplains below foothills such as the Strandzha; Cape Emine, a dwindling of the east end of the Balkan Mountains; and the Dobruja Plateau considerably farther north. The longest east–west extent is about 1,175 km (730 mi). Important cities along the coast include (clockwise from the Bosporus) the northern suburbs of Istanbul, Burgas, Varna, Constanța, Odesa, Yalta, Kerch, Yevpatoria, Sevastopol, Novorossiysk, Sochi, Poti, Batumi, Rize, Trabzon, Ordu, Simferopol, Samsun and Zonguldak.

The First Bulgarian Empire (Church Slavonic: блъгарьско цѣсарьствиѥ, romanized: blŭgarĭsko tsěsarǐstvije; Bulgarian: Първо българско царство) was a medieval state that existed in Southeastern Europe between the 7th and 11th centuries AD. It was founded in 680–681 after part of the Bulgars, led by Asparuh, moved south to the northeastern Balkans. There they secured Byzantine recognition of their right to settle south of the Danube by defeating – possibly with the help of local South Slavic tribes – the Byzantine army led by Constantine IV. During the 9th and 10th century, Bulgaria at the height of its power spread from the Danube Bend to the Black Sea and from the Dnieper River to the Adriatic Sea and became an important power in the region competing with the Byzantine Empire.

As the state solidified its position in the Balkans, it entered into a centuries-long interaction, sometimes friendly and sometimes hostile, with the Byzantine Empire. Bulgaria emerged as Byzantium's chief antagonist to its north, resulting in several wars. The two powers also enjoyed periods of peace and alliance, most notably during the Second Arab Siege of Constantinople, where the Bulgarian army broke the siege and destroyed the Arab army, thus preventing an Arab invasion of Southeastern Europe. Byzantium had a strong cultural influence on Bulgaria, which also led to the eventual adoption of Christianity in 864. After the disintegration of the Avar Khaganate, the country expanded its territory northwest to the Pannonian Plain. Later the Bulgarians confronted the advance of the Pechenegs and Cumans, and achieved a decisive victory over the Magyars, forcing them to establish themselves permanently in Pannonia.

Kherson Oblast (Ukrainian: Херсонська область, romanized: Khersonska oblast, IPA: [xerˈsɔnʲsʲkɐ ˈɔblɐsʲtʲ]; Russian: Херсонская область), also known as Khersonshchyna (Херсонщина, IPA: [xerˈsɔnʃtʃɪnɐ]), is an oblast (province) in southern Ukraine. It is located just north of Crimea. Its administrative center is Kherson, on the northern or right bank of the Dnieper river, which bisects the oblast. The oblast has an area of 28,461 km and a population of 1,001,598 (2022 estimate). It is considered the 'fruit basket' of the country, as much of its agricultural production is dispersed throughout the country, with production peaking during the summer months.

Most of the area of the oblast has been under Russian military occupation since early in the 2022 Russian invasion of Ukraine. In September 2022, Russia claimed to have annexed Kherson Oblast after arranging a disputed referendum. The referendum and the subsequent claimed annexation are internationally unrecognized. As the result of a counteroffensive operation, Ukrainian forces retook the whole area on the right bank of the Dnieper, including Kherson city, by mid-November 2022.

Zaporizhzhia, formerly known as Aleksandrovsk or Oleksandrivsk until 1921, is a city in southeast Ukraine, situated on the banks of the Dnieper River. It is the administrative centre of Zaporizhzhia Oblast. Zaporizhzhia has a population of 710,052 (2022 estimate).

Zaporizhzhia is known for the historic island of Khortytsia, multiple power stations and for being an important industrial centre. Steel, aluminium, aircraft engines, automobiles, transformers for substations, and other heavy industrial goods are produced in the region.

Kievan Rus', also known as Kyivan Rus', was the first East Slavic state and later an amalgam of principalities in Eastern Europe from the late 9th to the mid-13th century. Encompassing a variety of polities and peoples, including East Slavic, Norse, and Finnic, it was ruled by the Rurik dynasty, founded by the Varangian prince Rurik. The name was coined by Russian historians in the 19th century to describe the period when Kiev was preeminent. At its greatest extent in the mid-11th century, Kievan Rus' stretched from the White Sea in the north to the Black Sea in the south and from the headwaters of the Vistula in the west to the Taman Peninsula in the east, uniting the East Slavic tribes.

According to the Primary Chronicle, the first ruler to unite East Slavic lands into what would become Kievan Rus' was Varangian prince Oleg the Wise (r. 879–912). He extended his control from Novgorod south along the Dnieper river valley to protect trade from Khazar incursions from the east, and took control of the city of Kiev, laying the foundation of the state and becoming prince of Kiev. Sviatoslav I (r. 943–972) achieved the first major territorial expansion of the state, fighting a war of conquest against the Khazars. Vladimir the Great (r. 980–1015) spread Christianity with his own baptism and, by decree, extended it to all inhabitants of Kiev and beyond. Kievan Rus' reached its greatest extent under Yaroslav the Wise (r. 1019–1054); his sons assembled and issued its first written legal code, the Russkaya Pravda, shortly after his death.

Kyiv, also Kiev, is the capital and most populous city of Ukraine. Located in the north-central part of the country, it straddles both sides of the Dnieper River. As of 1 January 2022, its population was 2,952,301, making Kyiv the seventh-most populous city in Europe. Kyiv is an important industrial, scientific, educational, and cultural center. It is home to many high-tech industries, higher education institutions, and historical landmarks. The city has an extensive system of public transport and infrastructure, including the Kyiv Metro.

The city's name is said to derive from the name of Kyi, one of its four legendary founders. During its history, Kyiv, one of the oldest cities in Eastern Europe, passed through several stages of prominence and obscurity. The city probably existed as a commercial center as early as the 5th century. A Slavic settlement on the great trade route between Scandinavia and Constantinople, Kyiv was a tributary of the Khazars, until its capture by the Varangians (Vikings) in the mid-9th century. Under Varangian rule, the city became a capital of Kievan Rus', the first East Slavic state. Completely destroyed during the Mongol invasions in 1240, the city lost most of its influence for the centuries to come. Coming under Lithuania, then Poland and then Russia, the city would grow from a frontier market into an important centre of Orthodox learning in the sixteenth century, and later of industry, commerce, and administration by the nineteenth.

Smolensk is a city and the administrative center of Smolensk Oblast, Russia, located on the Dnieper River, 360 kilometers (220 mi) west-southwest of Moscow. It has a population of 316,570 (2021 census).

First mentioned in 863, it is one of the oldest cities in Russia. It has been a regional capital for most of the past millennium, beginning as the capital of the Principality of Smolensk in the 11th-15th centuries, then the Smolensk Voivodeship of Lithuania and the Polish–Lithuanian Commonwealth, and Smolensk Governorate and Oblast within Russia. It was the main stronghold of the Smolensk Gate, a geostrategically significant pass between the Daugava and Dnieper rivers, and as such was an important point of contention in the struggle for dominance in Eastern Europe, passing at various times between Lithuania, Poland and Russia. In more recent history, it was the site of two battles in 1812 and 1941 during the French invasion of Russia and Operation Barbarossa respectively on their paths towards Moscow. It was the place of the Smolensk air disaster of 2010.

The Pripyat or Prypiat is a river in Eastern Europe. The river, which is approximately 761 km (473 mi) long, flows east through Ukraine, Belarus, and into Ukraine again, before draining into the Dnieper at Kyiv Reservoir.

The Balts or Baltic peoples (Lithuanian: baltai, Latvian: balti) are a group of peoples inhabiting the eastern coast of the Baltic Sea who speak Baltic languages. Among the Baltic peoples are modern-day Lithuanians (including Samogitians) and Latvians (including Latgalians) — all East Balts — as well as the Old Prussians, Curonians, Sudovians, Skalvians, Yotvingians and Galindians — the Western Balts — whose languages and cultures are now extinct, but made a large influence on the living branches, especially on literary Lithuanian language.

The Balts are descended from a group of Proto-Indo-European tribes who settled the area between the lower Vistula and southeast shore of the Baltic Sea and upper Daugava and Dnieper rivers, and which over time became differentiated into West and East Balts. In the fifth century CE, parts of the eastern Baltic coast began to be settled by the ancestors of the Western Balts, whereas the East Balts lived in modern-day Belarus, Ukraine and Russia. In the first millennium CE, large migrations of the Balts occurred. By the 13th and 14th centuries, the East Balts shrank to the general area that the present-day Balts and Belarusians inhabit.

On 11 November 2022, the Armed Forces of Ukraine liberated and recaptured the city of Kherson and other areas of the Kherson Oblast and parts of the Mykolaiv Oblast on the right bank of the Dnipro River from Russian control. The Russian Armed Forces, which had occupied the city since 2 March 2022, withdrew and retreated to the left bank of the Kherson Oblast over the course of 9–11 November 2022.

The Ukrainian soldiers were greeted with cheers and large celebrations in the city square. The events were the culmination of the 2022 Kherson counteroffensive, and were seen as a large blow to Russian president Vladimir Putin, who had declared Kherson to be "part of Russia forever".

The trade route from the Varangians to the Greeks was a medieval trade route that connected Scandinavia, Kievan Rus' and the Eastern Roman Empire. The route allowed merchants along its length to establish a direct prosperous trade with the Empire, and prompted some of them to settle in the territories of present-day Belarus, Russia and Ukraine. The majority of the route comprised a long-distance waterway, including the Baltic Sea, several rivers flowing into the Baltic Sea, and rivers of the Dnieper river system, with portages on the drainage divides. An alternative route was along the Dniester river with stops on the western shore of Black Sea. These more specific sub-routes are sometimes referred to as the Dnieper trade route and Dniester trade route, respectively.

The route began in Scandinavian trading centers such as Birka, Hedeby, and Gotland, the eastern route crossed the Baltic Sea, entered the Gulf of Finland, and followed the Neva River into Lake Ladoga. Then it followed the Volkhov River upstream past the towns of Staraya Ladoga and Novgorod (where it met the Volga trade route and which became a major trade centre), crossed Lake Ilmen, and continued up the Lovat River, the Kunya River and possibly the Serezha River [ru]. From there, a portage led to the Toropa River [ru] and downstream to the Western Dvina River. From the Western Dvina, the ships went upstream along the Kasplya River and were portaged again to the Katynka River (near Katyn), a tributary of the Dnieper. It seems probable that once the route was established, the goods were unloaded onto land transport to cross the portage and reloaded onto other waiting ships on the Dnieper. Along the Dnieper, the route crossed several major rapids and passed through Kiev. After entering the Black Sea, it followed its west coast to Constantinople.

In the Middle Ages, the Volga trade route connected Northern Europe and Northwestern Russia with the Caspian Sea and the Sasanian Empire, via the Volga River. The Rus used this route to trade with Muslim countries on the southern shores of the Caspian Sea, sometimes penetrating as far as Baghdad. The powerful Volga Bulgars (cousins of today's Balkan Bulgarians) formed a seminomadic confederation and traded through the Volga river with Viking people of Rus' and Scandinavia (Swedes, Danes, Norwegians) and with the southern Byzantine Empire (Eastern Roman Empire) Furthermore, Volga Bulgaria, with its two cities Bulgar and Suvar east of what is today Moscow, traded with Russians and the fur-selling Ugrians. Chess was introduced to Medieval Rus via the Caspian-Volga trade routes from Persia and Arabia.

There was a second route from the Baltic Sea to the Dnieper, which ran along the Western Dvina (Daugava) between Lovat and Dnieper in the Smolensk region and along the Kasplya River to Gnezdovo. The Volga trade route functioned concurrently with the Dnieper trade route, better known as the trade route from the Varangians to the Greeks, and lost its importance in the 11th century.

Kherson (Ukrainian and Russian: Херсон, Ukrainian: [xerˈsɔn] , Russian: [xʲɪrˈson]) is a port city in southern Ukraine that serves as the administrative centre of Kherson Oblast. Located by the Black Sea and on the Dnieper River, Kherson is the home to a major ship-building industry and is a regional economic centre. At the beginning of 2022, its population was estimated at 279,131.

From March to November 2022, the city was occupied by Russian forces during their invasion of Ukraine. Ukrainian forces recaptured the city on 11 November 2022. In June 2023, the city was flooded following the Russian destruction of the nearby Kakhovka Dam.

The Russo-Turkish War of 1768–1774 was a major armed conflict that saw Russian arms victorious against the Ottoman Empire. Russia's victory brought the Yedisan between the rivers Bug and Dnieper, and Crimea into the Russian sphere of influence. Though a series of victories accrued by the Russian Empire led to substantial territorial conquests, including direct conquest over much of the Pontic–Caspian steppe, less Ottoman territory was directly annexed than might otherwise be expected due to a complex struggle within the European diplomatic system to maintain a balance of power that was acceptable to other European states and avoided direct Russian hegemony over Eastern Europe.

Nonetheless, Russia took advantage of the weakened Ottoman Empire, the end of the Seven Years' War, and the withdrawal of France from Polish affairs to assert itself as one of the continent's primary military powers. The war left the Russian Empire in a strengthened position to expand its territory and maintain hegemony over the Polish–Lithuanian Commonwealth, eventually leading to the First Partition of Poland. Turkish losses included diplomatic defeats which led to its decline as a threat to Europe, the loss of its exclusive control over the Orthodox millet, and the beginning of European bickering over the Eastern Question that would feature in European diplomacy until the dissolution of the Ottoman Empire in the aftermath of World War I.

Nogai, or Noğay (Kypchak and Turki: نوغای; also spelled Nogay, Nogaj, Nohai, Nokhai, Noqai, Ngoche, Noche, Kara Nokhai, and Isa Nogai; died 1299/1300) was a general and kingmaker of the Golden Horde. His great grandfather was Jochi, son of Genghis Khan.

Though he never formally ruled the Golden Horde himself, he was effectively the co-ruler of the state alongside whatever khan was in power at the time and had unrestricted control over the portions west of the Dnieper. At his height, Nogai was one of the most powerful men in Europe and widely thought of as the Horde's true head. The Russian chroniclers gave him the title of tsar, and the Franciscan missionaries in the Crimea spoke of him as a co-emperor. Nogai was also a notable convert to Islam.

Eastern Ukraine or East Ukraine (Ukrainian: Східна Україна, romanized: Skhidna Ukrayina; Russian: Восточная Украина, romanized: Vostochnaya Ukraina) is primarily the territory of Ukraine east of the Dnipro (or Dnieper) river, particularly Kharkiv, Luhansk and Donetsk oblasts (provinces). Dnipropetrovsk and Zaporizhzhia oblasts are often also regarded as "eastern Ukraine".

Almost a third of the country's population lives in the region, which includes several cities with population of around a million. Within Ukraine, the region is the most highly urbanized, particularly portions of central Kharkiv Oblast, south-western Luhansk Oblast, central, northern and eastern areas of Donetsk Oblast.

The Cossack Hetmanate (Ukrainian: Гетьма́нщина, romanized: Hetmanshchyna; see other names), officially the Zaporozhian Host (Ruthenian: Войско Zапорожскоε; Ukrainian: Військо Запорозьке, romanized: Viisko Zaporozke; Latin: Exercitus Zaporoviensis), was a stratocratic Zaporozhian Cossack state established by Registered Cossacks in Dnieper Ukraine. Its territory was located mostly in region of Central Ukraine, as well as in parts of Belarus and southwestern Russia, and at different points it also incorporated the territories of Zaporozhian Sich to the south. The Hetmanate existed between 1649 and 1764, although its administrative-judicial system persisted until 1781. In different periods it was a vassal of the Polish–Lithuanian Commonwealth, Ottoman Empire and Russian Empire.

The Hetmanate was founded in the eastern territories of the Polish–Lithuanian Commonwealth by the Treaty of Zboriv, signed on August 18, 1649 by Bohdan Khmelnytsky (Hetman of the Zaporizhian Host) and Adam Kysil (representing Crown Forces), as a result of Khmelnytsky Uprising. Establishment of vassal relations with the Tsardom of Russia in the Treaty of Pereiaslav of 1654 is considered a benchmark of the Cossack Hetmanate in Soviet, Ukrainian, and Russian historiography. The second Pereiaslav Council in 1659 restricted the independence of the Hetmanate, and from the Russian side there were attempts to declare agreements reached with Yurii Khmelnytsky in 1659 as nothing more than the "former Bohdan's agreements" of 1654. The 1667 Treaty of Andrusovo, conducted without any representation from the Cossack Hetmanate, established the borders between the Polish and Russian states, dividing the Hetmanate in half along the Dnieper and putting the Zaporozhian Sich under a formal joint Russian-Polish administration.

Kyiv Mountains or Kyiv Hills (Ukrainian: Київські гори, Київські пагорби, romanized: Kyivski hory, Kyivski pahorby) is a term used in journalism and literature for hills and highlands around the city of Kyiv that range from approximately 150 to almost 200 meters. The city of Kyiv is located within borders of three orographic regions: Dnieper Upland (Cisdnieper Upland) and Polesian and Dnieper lowlands. The hills are located in northern part of the Kyiv plateau where the Dnieper Upland slopes down towards the Dnieper river valley and the Kyiv Polesia. The highest marks recorded in central and southwestern parts of the city (within the Dnieper Upland, particularly the Kyiv plateau).

Hilly landscape is the reason for the unusual depths and two-fold escalators of underground Kyiv Metro (subway) stations in the city center (with the deepest one, Arsenalna, measuring 105.5 metres).