Hungary in its modern (post-1946) borders roughly corresponds to the Great Hungarian Plain (the Carpathian Basin) in Central Europe.
During the Iron Age, it was located at the crossroads between the cultural spheres of Scythian tribes (such as Agathyrsi, Cimmerians), the Celtic tribes (such as the Scordisci, Boii and Veneti), Dalmatian tribes (such as the Dalmatae, Histri and Liburni) and the Germanic tribes (such as the Lugii, Marcomanni). In 44 BC, the Sarmatians, Iazyges moved into the Great Hungarian Plain. In 8 AD, the western part of the territory (the so-called Transdanubia) of modern Hungary formed part of Pannonia, a province of the Roman Empire. Roman control collapsed with the Hunnic invasions of 370–410, the Huns created a significant empire based in present-day Hungary. In 453 they reached the height of their expansion under Attila the Hun. After the death of Attila, the empire collapsed in 455, and Pannonia became part of the Ostrogothic Kingdom. The western part of the Carpathian Basin was occupied by the Longobards and the eastern part by the Gepids. In 567, the Avars occupied the territory ruled by the Gepids. In 568, the Longobards moved to Italy from Transdanubia, and the Avars also occupied that territory, Khagan Bayan I established the Avar Khaganate. The Avars were defeated by the Franks and Bulgars, and their steppe-empire ended around 822.