I think it began in the mid 400s and started because it developed a major avenue for transportation
because the roman wall / hadrian
It means to get girls
Together with the Danube, it was a defensible line against incoming Eurasian nomads.
Julius Caesar conquered Gaul in his Gallic Wars (58-50 BC). He went as far as the River Rhine.
Hadrian's Wall in Britain the Danube River in Continental Europe
The three features are, Rhine River, Dounbe River, and the Carpathians Mts. They were the rivers Rhine and Danube and the limes Germanicus, a series of fortifications between the two rivers.
The Germanic groups crossed the River Rhine (the boundary of the empire) when it was frozen. The Roman had weakened this frontier because they needed to redeploy their troops in this area to Italy to fend off an invasion of Italy by an Ostrogoth king.
The Latin for "Rhine River" is "Flumen Rhenum."
The most Eastern Boundary of Rome was Constantinople which would later become the Capital of the eastern roman empire and then the Byzantiniam empire
Rhine, Danube, Euphrates.
The north-eastern part of the Roman Empire was formed by only one river: the Danube. The whole of the northern boundary of the Roman Empire was demarcated mostly by two rivers: the Danube and the Rhine. The latter marked the north-western frontier.
the Rhine and Danube Hope it helps(:
The Confederation of the Rhine.