Dniester in the context of Eastern Europe

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.

Old Great Bulgaria (Medieval Greek: Παλαιά Μεγάλη Βουλγαρία, Palaiá Megálē Voulgaría), also often known by the Latin names Magna Bulgaria and Patria Onoguria ("Onogur land"), was a 7th-century Turkic nomadic empire formed by the Onogur-Bulgars on the western Pontic–Caspian steppe (modern southern Ukraine and southwest Russia). Great Bulgaria was originally centered between the Dniester and lower Volga.

The original capital was Phanagoria on the Taman Peninsula between the Black and Azov seas. In the mid-7th century, Great Bulgaria expanded west to include Avar territory and was centered on Poltava. During the late 7th century, however, an Avar-Slavic alliance in the west, and Khazars in the east, defeated the Bulgars, and Great Bulgaria disintegrated. Successor states are the First Bulgarian Empire and Volga Bulgaria.

Moldova, officially the Republic of Moldova, is a landlocked country in Eastern Europe, with an area of 33,843 km (13,067 sq mi) and a population of 2.38 million. Moldova is bordered by Romania to the west and Ukraine to the north, east, and south. The unrecognised breakaway state of Transnistria lies across the Dniester river on the country's eastern border with Ukraine. Moldova is a unitary parliamentary representative democratic republic with its capital in Chișinău, the country's largest city and main cultural and commercial centre.

Most of Moldovan territory was a part of the Principality of Moldavia from the 14th century until 1812, when it was ceded to the Russian Empire by the Ottoman Empire (to which Moldavia was a vassal state) and became known as Bessarabia. In 1856, southern Bessarabia was returned to Moldavia, which three years later united with Wallachia to form Romania. Still, Russian rule was restored over the entire region in 1878. During the 1917 Russian Revolution, Bessarabia briefly became an autonomous state within the Russian Republic. In February 1918, it declared independence and then integrated into Romania later that year following a vote of its assembly. The decision was disputed by Soviet Russia, which in 1924 established, within the Ukrainian SSR, a so-called Moldavian autonomous republic on partially Moldovan-inhabited territories to the east of Bessarabia. In 1940, as a consequence of the Molotov–Ribbentrop Pact, Romania was compelled to cede Bessarabia and Northern Bukovina to the Soviet Union, leading to the creation of the Moldavian Soviet Socialist Republic (Moldavian SSR).

Krum (Greek: Κροῦμος/Kroumos), often referred to as Krum the Fearsome (Greek: Krum Strashni) (c. mid 8th century – 13 April 814) was the Khan of Bulgaria from sometime between 796 and 803 until his death in 814. During his reign the Bulgarian territory doubled in size, spreading from the middle Danube to the Dniester and from Odrin to the Tatra Mountains. His able and energetic rule brought law and order to Bulgaria and developed the rudiments of state organization.

Moldavia (Romanian: Moldova, pronounced [molˈdova] or Țara Moldovei lit. 'The country of Moldova'; in Romanian Cyrillic: Молдова or Цара Мѡлдовєй) is a historical region and former principality in Eastern Europe, corresponding to the territory between the Eastern Carpathians and the Dniester River. An initially independent and later autonomous state, it existed from the 14th century to 1859, when it united with Wallachia (Țara Românească) as the basis of the modern Romanian state; at various times, Moldavia included the regions of Bessarabia (with the Budjak), all of Bukovina and Hertsa. It also included the region of Pokuttya for a period of time.

The western half of Moldavia is now part of Romania, the eastern side belongs to the Republic of Moldova, and the northern and southeastern parts are territories of Ukraine.

Bessarabia (/ˌbɛsəˈreɪbiə/) is a historical region in Eastern Europe, bounded by the Dniester river on the east and the Prut river on the west. About two thirds of Bessarabia lies within modern-day Moldova, with the Budjak region covering the southern coastal region and part of the Ukrainian Chernivtsi Oblast covering a small area in the north.

In the late 14th century, the newly established Principality of Moldavia encompassed what later became known as Bessarabia. Afterward, this territory was directly or indirectly, partly or wholly controlled by: the Ottoman Empire (as suzerain of Moldavia, with direct rule only in Budjak and Khotyn), the Russian Empire, Romania, the USSR.

Transnistria, officially known as the Pridnestrovian Moldavian Republic (PMR) and locally as Pridnestrovie, is a landlocked breakaway state internationally recognised as part of Moldova. It controls most of the narrow strip of land between the Dniester river and the Moldova–Ukraine border, as well as some land on the other side of the river's bank. Its capital and largest city is Tiraspol. Transnistria is officially designated by the Republic of Moldova as the Administrative-Territorial Units of the Left Bank of the Dniester (Romanian: Unitățile Administrativ-Teritoriale din stînga Nistrului) or as Stînga Nistrului ("Left (Bank) of the Dniester").

The region's origins can be traced to the Moldavian Autonomous Soviet Socialist Republic (MASSR), which was formed in 1924 within the Ukrainian SSR. During World War II, the Soviet Union took parts of the MASSR, which was dissolved, and of the Kingdom of Romania's Bessarabia to form the Moldavian Soviet Socialist Republic in 1940. The present history of the region dates to 1990, during the dissolution of the Soviet Union, when the Pridnestrovian Moldavian Soviet Socialist Republic was established in hopes that it would remain within the Soviet Union should Moldova seek unification with Romania or independence, the latter occurring in August 1991. Shortly afterwards, a military conflict between the two parties started in March 1992 and concluded with a ceasefire in July that year.

A liman is a wide estuary formed as a lagoon at the mouth of one or more rivers where flow is constrained by a sediment bar created by sea or river current. The hydrological term comes from the Russian language and is used in various national and regional languages for estuary lagoons all around the Black Sea and Sea of Azov coasts.

A liman is classified as either maritime or fluvial: "maritime" if its sediment bar was formed by sea current; "fluvial" if the bar is created by obstructed flow in a saturated river.

Chișinău (/ˌkɪʃɪˈnaʊ/ KISH-in-OW, US also /ˌkiːʃiːˈnaʊ/ KEE-shee-NOW, Romanian: [kiʃiˈnəw] ; formerly known as Kishinev) is the capital and largest city of Moldova. The city is Moldova's main industrial and commercial centre. It is situated in the middle of the country, on the river Bîc, a tributary of the Dniester. According to the results of the 2024 Moldovan census, the population of the city proper stood at over 567,000 inhabitants, while the population of the Municipality of Chișinău (which includes the city itself and other nearby communities) numbered over 720,000 people. Chișinău is the most economically prosperous locality in Moldova and the country's largest transport hub. Nearly a third of Moldova's population resides in the metropolitan area.

Moldova has a history of winemaking dating back to at least 3,000 BC. As the capital city, Chișinău hosts the yearly national wine festival every October. Though the city's buildings were significantly damaged during the Second World War and earthquakes, a rich architectural heritage remains. In addition, it has numerous buildings designed in the postwar Socialist realism and Brutalist architecture styles.

The Thervingi, Tervingi, or Teruingi (sometimes pluralised Tervings or Thervings) were a Gothic people of the plains north of the Lower Danube and west of the Dniester River in the 3rd and the 4th centuries.

They had close contacts with the Greuthungi, another Gothic people from east of the Dniester, and they also had significant interactions with the Roman Empire. They were one of the main components of the large movement of Goths and other peoples over the Danube in 376, and they are seen as one of the most important ancestral groups of the Visigoths.

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.

The Wild Fields is a historical term used in the Polish–Lithuanian documents of the 16th to 18th centuries to refer to the Pontic steppe in the territory of present-day Eastern and Southern Ukraine and Western Russia, north of the Black Sea and Azov Sea. It was the traditional name for the Black Sea steppes in the 16th and 17th centuries. In a narrow sense, it is the historical name for the demarcated and sparsely populated Black Sea steppes between the middle and lower reaches of the Dniester in the west, the lower reaches of the Don and the Siverskyi Donets in the east, from the left tributary of the Dnipro–Samara, and the upper reaches of the Southern Bug–Syniukha and Ingul in the north, to the Black and Azov Seas and Crimea in the south.

In a broad sense, it is the name of the entire Great Eurasian Steppe, which was also called Great Scythia in ancient times or Great Tartary in the Middle Ages in European sources and Desht-i-Kipchak in Eastern (mainly Persian) sources.

The Zaporozhian Cossacks or Zaporizhian Cossacks, also known as the Zaporozhian Cossack Army or the Zaporozhian Host (Ukrainian: Військо Запорозьке, romanized: Viisko Zaporozke), were Cossacks who lived beyond (that is, downstream from) the Dnieper Rapids. They were predominantly Ruthenians, but also included other ethnic groups (most notably their legendary Kosh Otaman Ivan Sirko was of Moldavian origin). Along with Registered Cossacks and Sloboda Cossacks, Zaporozhian Cossacks played an important role in the history of Ukraine and the ethnogenesis of Ukrainians.

The Zaporozhian Sich grew rapidly in the 15th century from serfs fleeing the more controlled parts of the Polish–Lithuanian Commonwealth. The least controlled region, that was located between the Dniester and mid-Volga was first known from the 15th century as the Wild Fields, which was subject to colonization by the Zaporozhian Cossacks. Zaporozhian Host became established as a well-respected political entity with a parliamentary system of government. During the course of the 16th, 17th and well into the 18th century, the Zaporozhian Cossacks were a strong political and military force that challenged the authority of the Polish–Lithuanian Commonwealth, the Tsardom of Russia, and the Crimean Khanate.

The Yamnaya (/ˈjæmnaɪə/ YAM-ny-ə) or Yamna culture (/ˈjæmnə/ YAM-nə), also known as the Pit Grave culture or Ochre Grave culture, is a late Copper Age to early Bronze Age archaeological culture of the region between the Southern Bug, Dniester, and Ural rivers (the Pontic–Caspian steppe), dating to 3300–2600 BC. It was discovered by Vasily Gorodtsov following his archaeological excavations near the Donets River in 1901–1903. Its name derives from its characteristic burial tradition: yámnaya (я́мная) is a Russian adjective that means 'related to pits' (я́ма, yáma), as these people buried their dead in tumuli (kurgans) containing simple pit chambers. Research in recent years has found that Mykhailivka, on the lower Dnieper River, Ukraine, formed the core Yamnaya culture (c. 3600–3400 BC).

The Yamnaya culture is of particular interest to archaeologists and linguists, as the widely accepted Kurgan hypothesis posits that the people who produced the Yamnaya culture spoke a stage of the Proto-Indo-European language. The speakers of the Proto-Indo-European (PIE) language embarked on the Indo-European migrations that gave rise to the widely dispersed Indo-European languages of today.

The Romanian Bridgehead (Polish: Przedmoście rumuńskie; Romanian: Capul de pod român) was an area in southeastern Second Polish Republic that is now located in Ukraine. During the invasion of Poland in 1939 at the start of the Second World War, the Polish commander-in-chief, Marshal of Poland Edward Rydz-Śmigły, ordered all Polish troops fighting east of the Vistula (approximately 20 divisions still retaining the ability to co-operate) to withdraw towards Lwów and then to the hills along the borders with the Kingdom of Romania and the Soviet Union on 14 September. After the Soviets attacked on 17 September, Rydz-Śmigły ordered all units to withdraw to Romania and the Kingdom of Hungary, but communications had become disrupted although smaller units crossed outside the major battles.

The plan was a default plan in case it was impossible to defend the Polish borders, and it assumed that the Polish forces would be able to retreat to the area, organise a successful defence until the winter and hold out until the promised French offensive on the Western Front had started. Rydz-Śmigły predicted that the hills, valleys, swamps and the rivers Stryj and Dniester would provide natural lines of defence against the Nazi German advance. The area was also home to many ammunition dumps that were prepared for the third wave of Polish troops, and it was linked by transport to the Romanian port of Constanța, which could be used to resupply the Polish troops.

The Cucuteni–Trypillia culture, also known as the Cucuteni culture or Trypillia culture is a Neolithic–Chalcolithic archaeological culture (c. 5050 to 2950 BC) of Southeast Europe. It extended from the Carpathian Mountains to the Dniester and Dnieper regions, centered on modern-day Moldova and covering substantial parts of western Ukraine and northeastern Romania, encompassing an area of 350,000 km (140,000 sq mi), with a diameter of 500 km (300 mi; roughly from Kyiv in the northeast to Brașov in the southwest).

The majority of Cucuteni–Trypillia settlements were of small size, high density (spaced 3 to 4 kilometres apart), concentrated mainly in the Siret, Prut and Dniester river valleys. During its middle phase (c. 4100 to 3500 BC), populations belonging to the Cucuteni–Trypillia culture built some of the largest settlements in Eurasia, some of which contained as many as three thousand structures and were possibly inhabited by 20,000 to 46,000 people. The 'mega-sites' of the culture, which have been claimed to be early forms of cities, were the largest settlements in Eurasia, and possibly the world, dating to the 5th millennium BC. The population of the culture at its peak may have reached or exceeded one million people. The culture was wealthy and influential in Eneolithic Europe and the late Trypillia culture has been described by scholar Asko Parpola as thriving and populous during the Copper Age. It has been proposed that it was initially egalitarian and that the rise of inequality contributed to its downfall.

Burebista (Ancient Greek: Βυρεβίστας, Βοιρεβίστας) was the king of the Getae and Dacian tribes from 82/61 BC to 45/44 BC. He was the first king who successfully unified the tribes of the Dacian kingdom, which comprised the area located between the Danube, Tisza, and Dniester rivers, and modern day Romania and Moldova. In the 7th and 6th centuries BC it became home to the Thracian peoples, including the Getae and the Dacians. From the 4th century to the middle of the 2nd century BC the Dacian peoples were influenced by La Tène Celts who brought new technologies with them into Dacia. Sometime in the 2nd century BC, the Dacians expelled the Celts from their lands. Dacians often warred with neighbouring tribes, but the relative isolation of the Dacian peoples in the Carpathian Mountains allowed them to survive and even to thrive. By the 1st century BC the Dacians had become the dominant power.

From 61 BC onwards Burebista pursued a series of conquests that expanded the Dacian kingdom. The tribes of the Boii and Taurisci were destroyed early in his campaigns, followed by the conquest of the Bastarnae and probably the Scordisci peoples. He led raids throughout Thrace, Macedonia, and Illyria. From 55 BC the Greek cities on the west coast of the Black Sea were conquered one after another. These campaigns inevitably culminated in conflict with Rome in 48 BC, at which point Burebista gave his support to Pompey. This in turn made him an enemy to Julius Caesar, who decided to start a campaign against Dacia. This plan fell through in 44 BC when Caesar was assassinated. Burebista himself was assassinated in a plot by the Dacian aristocracy at around the same time.