Its territory significantly shrank due to its eastern and southern boundaries being adjusted by the new political borders created after World War I when the Treaty of Trianon was signed in 1920.
Its boundaries are the Carpathians in the north and east, the Transdanubian Mountains and the Dinaric Alps in the southwest, and approximately the Sava river in the south.
The most important Hungarian writers inspired by and associated with the plain are Ferenc Móra and Zsigmond Móricz, as well as the poets Sándor Petőfi and Gyula Juhász.
The notable cities and towns with medicinal baths are Debrecen, Berekfürdő, Cserkeszőlő, Gyula, Hajdúszoboszló, Orosháza, Szentes and Szolnok.
The portion of the Pannonian plain in Serbia is mostly divided into 3 large geographical areas: Bačka, Banat and Srem (Syrmia), most of which are located in the Vojvodina province.
During the Early Bronze Age (2000 - 1800 BC), the growing demand for metal ores in Europe resulted in the new pan-European and intercontinental trade networks.
The plain had formed the base for Huns, Avars, Magyars, Cumans, Jasz people and other nomadic tribes from the Eurasian Steppe.