[3] It was continually guarded since Roman times and it has served as a border of the Roman Empire, Austrian Empire, the Iron Curtain during the Cold War and finally a border between Austria and Czechoslovakia, today Slovakia.
Formerly, the gate was called in Latin: Porta Hungarica and in Hungarian: Dévényi kapu.
It ends near Hundsheimer Berg, the highest peak of the Austrian Carpathians at 480 meters AMSL, in Austria on the right bank of the Danube.
A large part of its core consists of granite massifs from the Carboniferous period.
[4] dubious Neolithic farmers settled in the area approximately 5000 - 3500 BC, establishing continuous human settlement which lasts until present time.