The Thames
geographical nature of Southern England should make us certain of the antiquity of village life in it, even were there no archæological 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 snow-bound 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
