If we seem in this chapter to make a divergence from the stream of postal history, it is only to make passing reference to the tributaries which helped to feed the main stream. The condition of the roads, and no less the modes of travelling, bore a most intimate relationship, at all the points in its history, to the development of the post-office system and its communications throughout the kingdom. The seventeenth century, as we have seen, was eventful in important postal improvements; the period was, comparatively speaking, very fruitful also in great changes and improvements in the internal character of the country. No question that the progress of the former depended greatly on the state of the latter. James the First, whatever might be his character in other respects, was indefatigable in his exertions to open out the resources of his kingdom. The fathers of civil engineering, such as Vermuyden and Sir Hugh Myddleton, lived during his reign, and both these eminent men were employed under his auspices, either in making roads, draining the fen country, improving the metropolis, or in some other equally useful scheme. The troubles of the succeeding reign had the effect of frustrating the development of various schemes of public utility proposed and eagerly sanctioned by James. Under the Commonwealth, and at intervals during the two succeeding reigns, many useful improvements of no ordinary moment were carried out. In the provinces, though considerable advances had been made in this respect during the century, travelling was still exceedingly difficult. In 1640, perhaps the Dover Road, owing to the great extent of continental traffic constantly kept up, was the best in England; yet three or four days were usually taken to travel it. In that year, Queen Henrietta and household were brought "with expedition" over that short distance in four long days. Short journeys were accomplished in a reasonable time, inasmuch as little entertainment was required. It was different when a long journey was contemplated, seeing how generally wretched were the hostelries of the period.[26] So bad, again, were some of the roads, that it was not at all uncommon, when a family intended to travel, for servants to be sent on beforehand to investigate the country and report upon the most promising track. Fuller tells us that during his time he frequently saw as many as six oxen employed in dragging slowly a single person to church. Waylen says that 800 horses were taken prisoners at one time during the civil wars by Cromwell's forces, "while sticking in the mud."