For the four centuries of Venetian mastery of the Mediterranean, the war galley was the instrument of Venetian power. Shallow drafted, manoeuvrable, and fast, the war galley allowed the Venetians to dominate the sea ways of the eastern Mediterranean. To produce the necessary ships, the Republic created the Arsenal, the largest industrial site in Europe before the Industrial Revolution. Surrounded by walls, the Arsenal could mass produce up to a hundred ships at a time in a way that was unique for the age, with the ships being floated to the different craftsmen in a manner that predated Henry Ford’s production line by centuries. Uniquely among the Mediterranean sea-going powers, Venetian galleys were usually crewed by free men rather than slaves. This meant their ships were not liable to sudden mutinies during battle and that the rowers could take part in boardings of enemy vessels. Venetian galleys also had lateen (triangular) sails, which allowed them to tack into the wind, providing greater manouevrability than square sails. But only the ship’s officers had any protection from the elements, with a tent being erected at the stern. The rowers had little or no shelter, from rain or sun.