There were two sailing seasons. The first was after the rising of the Pleiads, in spring; the second was between midsummer and autumn. When, after the setting of the Pleiads, the ship was hauled up into winter quarters on land, she was supported by props to keep her upright, and then a stone fence was put round her. This afforded her protection against wind and weather. The _cheimaros_, or plug, was then taken out from the bottom so as to let out all the bilge-water. The ship’s gear, the sails, steering oars, and tiller were then stored at home till the time came once more for the sailors to “stretch” their forestays. About the year 700 B.C. the Greek warships were manned by fifty rowers; hence these craft were called _pentekontoroi_. With the existence of a forecastle and a raised horned poop, one can understand perfectly well how easy was the transition which caused an upper deck to be added about this century. This gave to the ship greater power, because it allowed two banks of oarsmen, one on each deck. As far as possible these rowers were covered in to avoid the attacks of the enemy. Such shallow-draught vessels as the war-galleys could not possibly be good as sailing craft. They must be looked upon as essentially rowing vessels which occasionally set canvas when cruising and a fair wind was blowing. The _pentekontoroi_ were single-banked, and for a long time the Greek fleets consisted solely of this type. But then came the additional deck just spoken of which gave two banks, and subsequently the trireme succeeded the bireme. The trireme was very popular till after the close of the Peloponnesian War, when the quadrireme was introduced from Carthage. Dr. Oskar Seyffert[6] asserts that before the close of the fourth century B.C. quinquiremes and even six-banked craft, and (later still) even sixteen-banked vessels are supposed by some writers to have been in vogue. But as to the latter this seems highly improbable. And before we proceed any further, let us endeavour to get a clear idea as to the nature of a trireme. This species of ship had been invented by those great seamen who hailed from the port of Sidon. About the year 700 B.C. this type was adopted by the Greeks, and then began to supersede all other existing types of war-vessels. Themistocles in 483 B.C. inaugurated the excellent practice of maintaining a large permanent navy. As a commencement he built a hundred triremes, and these were used at the battle of Salamis. In the Greek word _trieres_ there is nothing to signify that it was necessarily three-banked, and it is well to realise this fact from the start. The word just means “triple-arranged,” neither more nor less. It is when we come to the question as to the details of this triple arrangement that we find a divergence of theory. It will, therefore, be best if we state first the prevailing theory of the trireme’s arrangement, and then pass on to give what is the more modern and the more plausible interpretation.