Now of all these districts, the first was by far the most important. Southern and eastern England, Hampshire, Surrey, Sussex, south Berkshire, were the most open and the best cultivated areas, enjoyed the best climate, and were most in touch with the civilisation of the Continent. It is true to say that right down to the industrial revolution the centre of gravity of England lay south of the Thames. In the actual fighting the south always conquered the north, and whereas influence monastic and constitutional would spread from either end of the island, it was the southern which ultimately survived.
There is more. It was along the green-sand ridge of south England that neolithic man had his principal seat. The getting of iron sprang up before history on the red stone of the Sussex weald; it remained there till our grandfathers' time. The oaks that grew from Kent to Devon, along so many creeks from the Rother to the Tamar, built our first ships. They remained our resource for this industry till the Napoleonic wars. The Victory was launched in Beaulieu River, and the first eye-witness, Caesar, heard that in cultivation the south had preceded the north.
6. Finally, not only was the district the best in England to develop an important road, but the platform or site for that road was ready provided, and invited use much more definitely than did any other way from the narrow seas up into the island.
With this last point I am led to describe the natural causeway which seems to call for a traveller landing in Kent to use it if he would go westward, or for one leaving the inland country to use it as the last part of his journey eastward towards the sea—I mean those heights which are called in their entirety the North Downs.
There runs from the neighbourhood of the Straits of Dover right across south England, in a great bow, a range of hills which for its length, unchanging pattern and aspect, has no exact parallel in Europe.
A man who should leave the Straits with the object of reaching the Hampshire centres would find a moderately steep, dry, chalky slope, always looking full towards the southern sun, bare of trees, cut by but three river valleys (and but one of these of any width), not often indented with combes or projecting spurs: this conspicuous range would lead him by the mere view of it straight on to his destination.
When you have turned the corner of the valley of the Stour, you can see for miles and miles the Kentish Downs like a wall pointing on over the Medway to Wrotham and the villages beyond. When you reach that projecting shoulder of Wrotham Hill you can still see on for miles and miles the straight, clean-cut embankment of chalk inviting you to pursue it westward at such a height as will clear the last cultivation of the valleys, and as will give you some view of your further progress. The end of each day's march is clearly apparent from the beginning of it, and the whole is seen to lie along this astonishingly homogeneous ridge. You do not lose that advantage for perhaps four days of going until you reach the valley of the Wey and the Guildford Gap; and even then for many miles further, though no longer on the chalk but on the sand, a sharp hillside, still looking at the sun, is afforded you in the Hog's Back.
You may say that from the Straits of Dover to Farnham, Nature herself laid down the platform of a perfectly defined ridge, from which a man going west could hardly deviate, even if there were no path to guide him.