Protection against pirates. to spread far and wide the benign influence of civilization, and to secure by all possible means the peaceful operations of trade. The security of property once re-established, the enterprise and cupidity of mankind discovered with alacrity cheap and expeditious modes for exchanging the products of labour with distant as well as with neighbouring nations. To encourage the people under his rule to enter upon commercial transactions, Charlemagne concluded treaties of commerce with various foreign princes, including the Saxon kings of the Heptarchy, to which reference has been already made. He repaired the lighthouse built by Caligula at Boulogne, erecting fresh ones at those points where the greatest danger was to be apprehended, provided effectual means of defence against the pirates and the Saracens, and encouraged those of his people who were willing to embark in over-sea occupations.
A.D. 838. This new commercial energy, which first showed itself under the kings of Lombardy, rapidly bore fruit, when Charlemagne resolved that the trading rights of Amalfi, Venice, Marseilles, and of other cities should be rigorously respected. His son, Louis le Débonnaire, followed the bright example of his illustrious father; but the destruction of Marseilles by the Saracens shortly after his death put an end for a while to the progress of commerce in the south of France. Nor, indeed, was Charles the Bold successful in recovering the losses sustained by the capture of Marseilles, while the invasion and piracies of the Normans on the north side of France, and the repeated attacks of the Saracens on the south, well nigh destroyed the seeds of progress sown
