In 49 BC, a small river in Romagna became the symbolic boundary between law and rebellion, between the Republic and personal power. That river was the Rubicon and the man who marched through it with an armed army was Gaius Julius Caesar. That gesture gave rise to one of the most famous phrases of all time
The die is cast
But above all, a new phase in Roman history began to take shape.
The Rubicon: a small river, a vast border
Geographically speaking, the Rubicon has never been a major river. It rises in the Romagna Apennines and flows down towards the Adriatic Sea crossing a fertile plain, criss-crossed by canals, consular roads and farming settlements. And yet, In Roman times, it had decisive legal significance: marked the border between the Cisalpine Gaul e Italy strictly speaking.
To the north of the Rubicon lay the province entrusted to Caesar; to the south lay the heart of the Roman Empire. To cross it with the legions meant invading Italy.
Romagna as a land of passage
La Roman Romagna was a strategic region. Crossed by the Via Emilia, it linked Rome to the north of the peninsula and to continental Europe. People, goods, armies and ideas travelled along this route.
The Rubicon formed part of this system as a line of control – more administrative than natural – but precisely for this reason it was imbued with symbolic significance. Caesar knew the territory inside out: rivers, fords, roads and towns were key elements of his strategy.
The crossing and the march towards Ariminum
According to ancient sources, Caesar crossed the Rubicon with the 13th Legion, probably at a point where the river could easily be forded, taking advantage of the flat terrain of the coastal Romagna region. From there, he moved quickly along the Via Emilia towards Ariminum, the current Rimini.
Ariminum It wasn’t just any old town: it was the gateway to Italy, the point where the Via Emilia met the Via Flaminia, on the road to Rome. Controlling it meant controlling the northern access to the peninsula. Caesar occupied it without a fight and was welcomed by the local population.
Rimini and its central geographical location
The choice of Ariminum It was no coincidence. The city, founded as a Latin colony in 268 BC, was a a transport, military and commercial hub. Even today, its historic centre retains its Roman layout, with monuments such as the Arch of Augustus and the Tiberius Bridge, which bear witness to its ancient importance.
In that January of In 49 BC, Rimini became the first Italian town to come under Caesar’s control, transforming Romagna from a remote border region into a hub of Roman history.
Where is the Rubicon today?
For centuries, scholars debated which river was the real Rubicon. Today The most widely accepted view places it in the river that flows through Savignano sul Rubicone, where the very name of the village preserves the memory of the event.
Here the river flows peacefully, yet its historical significance remains undiminished: it is the symbol of an irreversible choice, forged in a borderland such as Romagna, which has always been a place of transit, encounter and transformation.
Romagna as a historical region
The crossing of the Rubicon demonstrates that the geography of Romagna has never been of secondary importance. The plains, rivers, roads and towns have made this region a key crossroads between the North and the South, and between Rome and Europe.
When Caesar decided to ‘cross the Rubicon’, he did not merely cross a river: he crossed a region which, by virtue of its location and characteristics, made an epoch-making turning point both possible and evident.
Even today, as you walk along the banks of the Rubicon or along the Via Emilia, Romagna continues to tell the story of that moment when history changed course right here, on this land.
