Entry
The third-century invasions — Frankish and Alemannic incursions into Gaul, from 252 to 277
Taking advantage of Rome’s troubles, Frankish and Alemannic bands crossed the Rhine and ravaged Gaul in waves for a quarter of a century, perhaps reaching Paris. When calm returned, some of them were allowed to settle in the regions they had laid waste, to help rebuild them. (Editorial synthesis)
The third-century invasions ended in outside tribes settled within the empire. (source: Encyclopædia Britannica)
Answers are drawn from a corpus established and verified by an editorial team; each one shows its source.
When a piece of information is not in that collection, the encyclopedia says so rather than inventing it — that principle is what makes every answer it does give trustworthy.