The Historic Thames | Page 2

village life in it, even were there no arch?ological evidence to support that antiquity.
South England is everywhere fertile, everywhere well watered, and nowhere divided, as is the North, by long districts of bare country, or of hills snowbound in winter, or of morass. Its forests, though numerous, have never formed one continuous belt; even the largest of them, the Forest of the Weald, between the downs of Surrey and Kent and those of Sussex, was but twenty miles across--large enough to nourish a string of hunting villages upon the north and the south edges of it; but not large enough to isolate the Thames Valley from the southern coast.
From the beginning of human activity in this island the whole length of the river has been set with human settlements never far removed one from the other; for the Thames ran through the heart of South England, and wherever its banks were secure from recurrent floods it furnished those who settled on them with three main things which every early village requires: good water, defence, and communication.
The importance of the first lessens as men learn to dig wells and to canalise springs; the two last, defence and communication, remain attached to river settlements to a much later date, and are apparent in all the history of the Thames.
The problem of communication under early conditions is serious. Even in a high civilisation the maintenance of roads is of greater moment, and imposes a greater burden, than most of the citizens who support it know; but before the means or the knowledge exist to survey and to harden roads, with their causeways over marshes and their bridges over rivers, the supply of food in time of scarcity or of succour in time of danger is never secure: a little narrow path kept up by nothing but the continual passage of men and animals is all the channel a community of men have for communicating with their neighbours by land. And it must be remembered that upon such communication depend not only the present existence, but the future development of the society, which cannot proceed except by that fertilisation, as it were, which comes from the mixture of varied experiences and of varied traditions: every great change in history has necessarily been accompanied by some new activity of travel.
Under the primitive conditions of which we speak a river of moderate depth, not too rapid in its current and perennial in its supply, is much the best means by which men may communicate. It will easily carry, by the exertions of a couple of men, some hundred times the weight the same men could have carried as porters by land. It furnishes, if it is broad, a certain security from attack during the journey; it will permit the rapid passage of a large number abreast where the wood tracks and paths of the land compel a long procession; and it furnishes the first of the necessities of life continually as the journey proceeds.
Upon all these accounts a river, during the natural centuries which precede and follow the epochs of high civilisation, is as much more important than the road or the path as, let us say, a railway to-day is more important than a turnpike.
What is equally interesting, when a high civilisation after its little effort begins to decline into one of those long periods of repose into which all such periods of energy do at last decline, the river reassumes its importance. There is a very interesting example of this in the history of France. Before Roman civilisation reached the north of Gaul the Seine and its tributary streams were evidently the chief economic factor in the life of the people: this may be seen in the sites of their strongholds and in the relation of the tribes to one another, as for instance, the dependence of the Parisians upon Sens. The five centuries of active Roman civilisation saw the river replaced by the system of Roman roads; the great artificial track from north to south, for instance, takes on a peculiar importance; but when the end of that period has come, and the energies of the Roman state are beginning to drag, when the money cannot be collected to repair the great highways, and these fall into decay--then the Seine and its tributaries reassume their old importance. Paris, the junction of the various waterways, becomes the capital of a new state, and the influence of its kings leads out upon every side along the river valleys which fall into the main valley of the Seine.
There are but two considerable modifications to the use for habitation of slow and constant rivers: their value is lessened or interrupted by precipitous banks or they are rendered unapproachable by marshes. The first of these causes, for instance,