n Thrace, and soon imbibed the
manners and sentiments of Roman subjects. But the expectations of
Probus were too often disappointed. The impatience and idleness of
the barbarians could ill brook the slow labors of agriculture. Their
unconquerable love of freedom, rising against despotism, provoked them
into hasty rebellions, alike fatal to themselves and to the provinces;
nor could these artificial supplies, however repeated by succeeding
emperors, restore the important limit of Gaul and Illyricum to its
ancient and native vigor.

Of all the barbarians who abandoned their new settlements, and disturbed
the public tranquillity, a very small number returned to their own
country. For a short season they might wander in arms through the
empire; but in the end they were surely destroyed by the power of
a warlike emperor. The successful rashness of a party of Franks was
attended, however, with such memorable consequences, that it ought not
to be passed unnoticed. They had been established by Probus, on the
sea-coast of Pontus, with a view of strengthening the frontier against
the inroads of the Alani. A fleet stationed in one of the harbors of
the Euxine fell into the hands of the Franks; and they resolved, through
unknown seas, to explore their way from the mouth of the Phasis to
that of the Rhine. They easily escaped through the Bosphorus and
the Hellespont, and cruising along the Mediterranean, indulged
their appetite for revenge and plunder by frequent descents on the
unsuspecting shores of Asia, Greece, and Africa. The opulent city of
Syracuse, in whose port the natives of Athens and Carthage had formerly
been sunk, was sacked by a handful of barbarians, who massacred the
greatest part of the trembling inhabitants. From the Island of Sicily,
the Franks proceeded to the columns of Hercules, trusted themselves to
the ocean, coasted round Spain and Gaul, and steering their triumphant
course through the British Channel, at length finished their surprising
voyage, by landing in safety on the Batavian or Frisian shores. The
example of their success, instructing their countrymen to conceive the
advantages and to despise the dangers of the sea, pointed out to their
enterprising spirit a new road to wealth and glory.

Notwithstanding the vigilance and activity of Probus, it was almost
impossible that he could at once contain in obedience every part of his
wide-extended dominions. The barbarians, who broke their chains, had
seiz