In infusing into trade a new activity, the Crusades necessarily perfected the art of navigation. We may well admit that the sea held less of terror for one who confronted it to perform a religious duty, and insensibly this fear-inspiring element became less regarded as the inevitable tomb of all who confided to it their life or fortune. Moreover vessels ceased to be guided by blind instinct or the insufficient experience of pilots. The compass, whose origin it is so difficult to establish (and indeed the instrument may not have been invented before the time of the First Crusade), was in general use on the ships that plied the Mediterranean. We must admire the fortunate but rash industry of the Italians who overcame the caprices and fury of the waves. These navigators gained experience more and more in constantly transporting pilgrims, and proved that it was not impossible to sail the seas in winter. Venice surpassed the whole world in the brilliance of her maritime glory. She well deserved that a pope of this period, zealous to show his gratitude to his defenders, presented the doge, with solemn ceremony, the wedding ring which was for long ages the unique emblem of the republic’s naval power.
Crusader of the Last Crusade
Other fleets than those of Italy found their way to the Holy Land. One might see on the Southern Sea vessels carrying those pirates and adventurers which set out every year in great numbers from the countries in the north, the Flemings, the Dutch, the Swedes, the Danes often rendered considerable assistance to the Christians in the East. Norwegians fought under King Baldwin at the taking of Sidon; the Flemings rescued Lisbon from the Saracens. These northern people came in high-decked massive ships, while the vessels in use on the Mediterranean were very light and shallow affairs; a difference in structure which could not be noticed without a comparison of advantages and disadvantages.
From the Crusades may be dated the establishment of the French navy. Philip Augustus, on his return from the Holy Land, organised a national fleet; before this the French fleets were composed of foreign vessels hired for a certain time. The title of “admiral,” of which the name and idea was borrowed from the Greeks or the Arabs, came into constant use about the time of the Second Crusade, whereas the rank was never bestowed in former days except at the commencement of a war, and went out of use at its close.
Very soon the ocean and the Mediterranean were covered with vessels manned by prudent and intrepid sailors. The great overland route from Antwerp to Genoa, which was expensive, slow, and difficult, was thenceforth given up.
Naval architecture learned a lesson from several abuses which the Crusades momentarily had introduced into the art. Ships of excessive capacity, too weak, and of faulty proportions had been hastily built in order to accommodate the crowd of pilgrims. Seamen who wished their voyages to be more lucrative and passengers desirous of travelling in companies began to adopt these ungainly vessels. However, this departure from the principles of shipbuilding caused the loss of many fleets and brought about a fortunate innovation in naval architecture. Experience taught that a single mast was not sufficient in a vessel of great size, and we may trace to this period the custom of furnishing several masts to a single ship—a custom whose antiquity is well proven, but whose origin is somewhat shadowed in doubt.
An increase in the number of sails must of necessity follow the adoption of more than one mast; ships were no longer stopped in their course for lack of a directly favourable wind,—by trimming the sails with skill the seaman progressed nearly always towards his destination. The art of sailing for a certain point with the wind nearly dead ahead must certainly be counted as one of the most ingenious and important discoveries ever made.
INFLUENCE ON INDUSTRY
The same causes which gave a new activity to commerce served to develop powerfully every resource of industry. At the time of the first Crusades there were no manufactories of silken stuffs but those of the Greeks, a species of industry they had taken from the Persians, but which they themselves were soon forced to give over to Sicily. Then artisans leaving the island taught the Italians the art of making silk. The industry occupied principally the members of the religious order of the Humilies, who invented, it is said, cloth of gold and of silver.