However, at the end of two or three centuries, this Gallic colony succumbed beneath the superior power of the Etruscans, another set of invaders from eastern Europe, perhaps from the north of Greece, who founded in Italy a mighty empire.

The Umbrians or Ambrons were driven out or subjugated.

Nevertheless some of their peoplets, preserving their name and manners, remained in the mountains of upper Italy, where they were to be subsequently discovered by fresh and more celebrated Gallic invasions.
Those just spoken of are of such antiquity and obscurity, that we note their place in history without being able to say how they came to fill it.

It is only with the sixth century before our era that we light upon the really historical expeditions of the Gauls away from Gaul, those, in fact, of which we may follow the course and estimate the effects.
Towards the year 587 B.C., almost at the very moment when the Phoceans had just founded Marseilles, two great Gallic hordes got in motion at the same time, and crossed, one the Rhine, the other the Alps, making one for Germany, the other for Italy.

The former followed the course of the Danube and settled in Illyria, on the right bank of the river.