It was in this barren and marshy spot of ground, which has communication with the main land only by one way, that Peter laid the foundation of Petersburg, in the sixtieth degree of latitude, and the forty-fourth and a half of longitude. The ruins of some of the bastions of Nya was made use of for the first stones of the foundation.[67] They began by building a small fort upon one of the islands, which is now in the centre of the city. The Swedes beheld, without apprehension, a settlement in the midst of a morass, and inaccessible to vessels of burden; but, in a very short time, they saw the fortifications advanced, a town raised, and the little island of Cronstadt, situated over against it, changed, in 1704, into an impregnable fortress, under the cannon of which even the largest fleets may ride in safety. These works, which seemed to require a time of profound peace, were carried on in the very bosom of war; workmen of every sort were called together, from Moscow, Astracan, Casan, and the Ukraine, to assist in building the new city. Neither the difficulties of the ground, that was to be rendered firm, and raised, the distance of the necessary materials, the unforeseen obstacles, which are for ever starting up in all great undertakings; nor, lastly, the epidemical disorder, which carried off a prodigious number of the workmen, could discourage the royal founder; and, in the space of five months, a new city rose from the ground. It is true, indeed, it was little better than a cluster of huts, with only two brick houses, surrounded by ramparts; but this was all that was then necessary. Time and perseverance accomplished the rest. In less than five months, after the founding of Petersburg, a Dutch ship came to trade there, (Nov.) the captain of which was handsomely rewarded, and the Dutch soon found the way to Petersburg.