The Pannonian Basin or Carpathian Basin is a large basin in East-Central Europe. The geomorphological term Pannonian Plain is more widely used for roughly the same region though with a somewhat different sense - meaning only the lowlands, the plain that remained when the Pliocene Pannonian Sea dried out. It is a geomorphological subsystem of the Alps-Himalaya system. The river Danube divides the plain roughly in half. Most of the plain consists of the Great Hungarian Plain (in the south and east, including the Eastern Slovak Lowland) and the Little Hungarian Plain (in the northwest), divided by the Transdanubian Mountains.
The Pannonian Basin is situated in the southeastern part of Central Europe, or at the boundary between Central Europe, Eastern Europe and Southeastern Europe (Balkans). It forms a topographically discrete unit set in the European landscape, surrounded by imposing geographic boundaries - the Carpathian Mountains, the Alps, the Dinarides and the Balkan mountains. The rivers Danube and Tisza divide the basin roughly in half. It extends roughly between Vienna in the northwest, Zagreb in the southwest, Belgrade in the southeast and Satu Mare in the northeast.
In terms of modern state boundaries, the basin is centered in the territory of Hungary, but it also extends to North Serbia, Central Croatia and Slavonia in the Republic of Croatia, western Slovakia, the Eastern Slovak Lowland (including the southwestern tip of Ukraine), besides the border regions of northern Bosnia and Herzegovina, western Transylvania in Romania, and the eastern tips of Slovenia and Austria.
In English, the terms "Pannonian Basin" and "Carpathian Basin" are used synonymously. The name "Pannonian" is taken from that of Pannonia, a province of the Roman Empire. The historical province overlapped but was not coterminous with the geographical plain or basin. The term Pannonian Plain refers to the lowland parts of the Pannonian Basin as well as those of some adjoining regions like Lower Austria, Moravia, Bosnia. The lands adjoining the plain proper are sometimes also called peri-Pannonian.
The term Carpathian Basin is used in Hungarian literature, while the South Slavic languages, Slovak, Romanian and German use Pannonian: In Hungarian, the basin is known as Kárpát-medence, in Serbian and Bosnian as Панонски басен/ Panonski basen and Panonska nizija, in Croatian as Panonska nizina, in Slovak as Panónska kotlina, in Slovenian as Panonska kotlina and in German as Pannonisches Becken, in Romanian as Câmpia Panonică or Bazinul Panonic.
In Hungarian geographical literature various subdivisions of the Carpathian Mountains (Inner Western Carpathians, Inner Eastern Carpathians, Southern Carpathians, Western Carpathians and Transylvanian Plateau) are also considered parts of the Carpathian Basin on the basis of traditional geopolitical divisions.
Climate and natural resources 
Although rain is not plentiful, it usually falls when necessary and the plain is a major agricultural area; it is sometimes said that these fields of rich loamy loess soil could feed the whole of Europe. For its early settlers, the plain offered few sources of metals or stone. Thus when archaeologists come upon objects of obsidian or chert, copper or gold, they have almost unparalleled opportunities to interpret ancient pathways of trade.
The Pannonian plain is divided into two parts along the Transdanubian Mountains (Hungarian: Dunántúli-középhegység). The northwestern part is called Western Pannonian plain (or province) and the southeastern part Eastern Pannonian plain (or province). They comprise the following sections:
- Western Pannonian Plain (province):
- Eastern Pannonian Plain (province):
Note: The Transylvanian Plateau and the Lučenec-Košice Depression (both parts of the Carpathians) and some other lowlands are sometimes also considered part of the Pannonian Plain in non-geomorphological or older divisions.
Relatively large or distinctive areas of the plain that do not necessarily correspond to national borders include:
- Bačka/Bácska (Serbia, Hungary)
- Banat (Romania, Serbia, Hungary)
- Baranya/Baranja (Hungary, Croatia)
- Burgenland (Neusiedler Basin), Austria
- Crişana (Romania)
- Jászság (Hungary)
- Kunság (Hungary)
- Little Hungarian Plain (Kisalföld/Malá dunajská kotlina - Hungary, Slovakia)
- Mačva (Serbia)
- Međimurje (Croatia)
- Moravia (part), Czech Republic
- Moslavina (Croatia)
- Podravina (Croatia, Hungary, around Drava river)
- Podunavlje (Serbia, Croatia, around Danube river)
- Pokuplje (Croatia, around Kupa river)
- Pomoravlje (part), Serbia, around Morava river
- Pomorišje (Romania, Hungary, Serbia, around Mureş river)
- Posavina (Croatia, Bosnia and Herzegovina, Serbia, around Sava river)
- Potisje (Serbia, around Tisa river)
- Prekmurje (Slovenia)
- Semberija (Bosnia and Herzegovina)
- Slavonia (Croatia)
- Srem/Srijem (Serbia, Croatia)
- Transcarpatia (Ukraine)
- Transdanubia (Hungary)
- Vienna Basin (part), Austria
- Vojvodina (Serbia)
- several more inside Hungary, see: Counties of Hungary, Regions of Hungary
- several more inside Slovakia, see: Traditional regions of Slovakia, Regions of Slovakia
The Pannonian Basin has its geological origins in the Pannonian Sea, a shallow sea that reached its greatest extent during the Pliocene Epoch, when three to four kilometres of sediments were deposited.
The plain was named after the Pannonians, a northern Illyrian tribe. Various different peoples inhabited the plain during its history. In the first century BC, the eastern parts of the plain belonged to the Dacian state, and in the first century AD its western parts were subsumed into the Roman Empire. The Roman province named Pannonia was established in the area, and the city of Sirmium, today Sremska Mitrovica, Serbia, became one of the four capital cities of the Roman Empire in the 3rd century.
Middle Ages 
In the Age of Migrations and the early Middle Ages, the region belonged to several realms such as the Hun Empire, the Kingdom of the Gepids, the Kingdom of the Ostrogoths, the Kingdom of the Lombards, the Avar Kingdom, the Slavic state of Samo, the Bulgarian Empire, the Frankish Empire, the Great Moravia, the Balaton Principality, the Pannonian Principality and the Kingdom of Syrmia.
The Principality of Hungary established in 895 by the Magyars was centered around the plain and included almost all of it (as did the former Avar Kingdom as well). It was established as the Christian kingdom of Hungary in AD 1000, with the coronation of Stephen I of Hungary.
The kingdom of Hungary by the 11th century comprised the entire Pannonian basin, but the changing fates of this part of Europe during the Ottoman wars of the 14th to 17th centuries left the Pannonian basin divided between numerous political entities. After the Battle of Mohács in 1526, the central and eastern regions of the kingdom and the plain on which they lay were incorporated into the Ottoman Empire, while the remainder to the north-west was subsumed into the holdings of the Habsburg Monarchy and retitled Royal Hungary. Under Ottoman administration, the plain was reorganized into the Eyalet of Budim, the Eyalet of Egri, the Eyalet of Sigetvar, and the Eyalet of Temeşvar.
Modern history 
The Pannonian Plain was frequently a scene of conflict between the two empires. At the end of the 17th century the Habsburgs won decisive battles against the Ottomans, and most of the plain gradually came under Habsburg rule. Under Habsburg rule the region was eventually reorganized into the Kingdom of Hungary, the Banat of Temeswar, the Military Frontier, the Kingdom of Croatia, the Kingdom of Slavonia and Serbian Voivodship and Tamiš Banat.
The Habsburg Monarchy was subsequently transformed into the Austrian Empire (in 1804) and later became Austria-Hungary (in 1867). Most of the plain was located within the Hungarian part of Austria-Hungary, since all other Habsburg possessions in the plain were integrated into the Kingdom of Hungary until 1882. The autonomous Kingdom of Croatia-Slavonia, which was one of the Lands of the Crown of St. Stephen, comprised the south-western portion of the plain.
With the dissolution of Austria-Hungary after World War I, the region was divided between Hungary, Romania, Czechoslovakia, Austria, and the Kingdom of Serbs, Croats and Slovenes (renamed to Yugoslavia in 1929). The borders drawn in 1918 and 1919 are mostly preserved as those of the contemporary states of Hungary, Serbia, Croatia, Slovakia, Romania and Austria.
Major cities 
This is a list of cities in the Pannonian Basin with a population larger than 100,000:
- Budapest Hungary (1,733,685)
- Zagreb Croatia (804,000)
- Northern Belgrade Serbia (564,320)
- Bratislava Slovakia (457,426)
- Novi Sad Serbia (341,854)
- Timişoara Romania (303,708)
- Košice Slovakia (233,659)
- Debrecen Hungary (207,270)
- Oradea Romania (183,123)
- Szeged Hungary (169,731)
- Miskolc Hungary (169,226)
- Pécs Hungary (157,680)
- Arad Romania (147,992)
- Subotica Serbia (140,358)
- Győr Hungary (130,478)
- Zrenjanin Serbia (122,714)
- Pančevo Serbia (122,252)
- Nyíregyháza Hungary (117,832)
- Šabac Serbia (115,347)
- Osijek Croatia (114,616)
- Maribor Slovenia (112,642)
- Kecskemét Hungary (112,233)
- Székesfehérvár Hungary (101,973)
See also 
- Eldridge M. Moores, Rhodes Whitmore Fairbridge (1997). Encyclopedia of European and Asian Regional Geology. Springer. ISBN 0-412-74040-0, 9780412740404 Check
- Adami Jordan, Peter Jordan, Milan Orožen Adamič (2007). Exonyms and the International Standardisation of Geographical Names: Approaches Towards the Resolution of an Apparent Contradiction. LIT Verlag Berlin-Hamburg-Münster. p. 240. ISBN 3-8258-0035-0, 9783825800352 Check
- George Walter Hoffman, Christopher Shane Davies (1983). A Geography of Europe: Problems and Prospects. Wiley. p. 647. ISBN 0-471-89708-6, 9780471897088 Check
- George Walter Hoffman, Nels August Bengtson (1953). A Geography of Europe. Ronald Press Co. p. 757.
- Pannonia Inferior covered much of the western half of the basin, as far as the Danube. Pannonia Superior included the western fringe of the basn as well as part of the Eastern Alps, as far as Virunum. The southern fringe of the basin was in Dalmatia and Moesia. The eastern half of the basin was not conquered by the Romans, and was considered part of Sarmatia, inhabited by the Iazyges. Likewise, the parts north of the Danube (now in western Slovakia) were not in the empire; they were considered part of Germania, inhabited by the Quadi.
|Wikimedia Commons has media related to: Pannonian Basin|
- Zentai László's account of the Basin formation In Hungarian.
- Anthropological sketch of the prehistoric population
- Körös Regional Archaeological Project: Neolithic and Copper Age archaeology in the Pannonian plain