Notwithstanding the advantage of this victory, and the conquest of so important a city, the Romans were sensible, that whilst the Carthaginians should continue masters at sea, the maritime places in the island would always side with them, and put it out of their power ever to drive them out of Sicily.(665) Besides, they saw with reluctance Africa enjoy a profound tranquillity, at a time that Italy was infested by the frequent incursions of its enemies. They now first formed the design of having a fleet, and of disputing the empire of the sea with the Carthaginians. The undertaking was bold, and in outward appearance rash; but it evinces the courage and magnanimity of the Romans. They were not at that time possessed of a single vessel which they could call their own; and the ships which had transported their forces into Sicily had been borrowed of their neighbours. They were unexperienced in sea affairs, had no carpenters acquainted with the building of ships, and did not know even the shape of the Quinqueremes, or galleys with five benches of oars, in which the chief strength of fleets at that time consisted. But happily, the year before, one had been taken upon the coasts of Italy, which served them as a model. They therefore applied themselves with incredible industry and ardour to the building of ships in the same form; and in the mean time they got together a set of rowers, who were taught an exercise and discipline utterly unknown to them before, in the following manner. Benches were made, on the shore, in the same order and fashion with those of galleys. The rowers were seated on these benches, and taught, as if they had been furnished with oars, to throw themselves backwards with their arms drawn to their breasts; and then to throw their bodies and arms forward in one regular motion, the instant their commanding officer gave the signal. In two months, one hundred galleys of five benches of oars, and twenty of three benches, were built; and after some time had been spent in exercising the rowers on shipboard, the fleet put to sea, and went in quest of the enemy. The consul Duillius had the command of it.