At Cuxton the firm land of the hills comes upon either side close to the river. An ancient track-way upon either side leads very near to the point of crossing and cannot be followed, or at least nothing like so clearly followed further down the valley. At Cuxton, moreover, as a constant tradition maintains, the crossing of the river by pilgrims was common.
On the other hand there is nothing approaching a ford at this place. The bottom is soft mud, the width of the river very considerable, the tidal current strong, and of all the points at which the river might have been crossed, it is the most distant from the direct line; indeed, compared with the next point, Lower Halling, a traveller would add five or six miles to his journey by choosing Cuxton.
Now, consider Aylesford, the other extreme; the highest up as Cuxton is the lowest down the river of the four points. Aylesford has many powerful arguments in its favour. It has produced one of the most interesting and suggestive prehistoric relics in England: I mean that 'Aylesford pottery' which is an imitation, or possibly even an import, of the pottery of northern Italy in the first or second centuries before our area. It has furnished a mass of other antiquities: armillae of gold have been found in the river and British coins and graves on the northern bank. It preserves in the last part of its name the tradition of a ford, and though 'ford' in place-names by no means always signifies a ford any more than 'bridge' signifies a bridge, yet in this case we have historic knowledge that a ford existed; and (as is most frequently the case) the ford has been bridged.
A further argument, and in its way one of the strongest that could be adduced, is the position of the place in the earliest of our annals. Whether 'the Horse and the Mare,' Vortigern, and the rest are wholly legendary or not, cannot be determined. Certainly the texture of the story is fabulous, but Bede and 'Nennius' have both retained the memory of a great battle fought here, in which the British overcame the Pirates, and what is most significant of all, the legend or memory records a previous retreat of the Saxons from a defeat at Otford. We know, therefore, that a writer in the seventh century, though what he was writing might be fable, would take it for granted that a retreat westward from Otford would naturally lead along some road which passed the Medway at Aylesford. We get another much later example of the same thing when Edmund Ironside, after his great victory at Otford over the Danes, pursued them to Aylesford, and was only prevented from destroying them by their passage over the river under the cover of treason.
This is very strong evidence in favour of Aylesford, and when one remembers that the manor was ancient demesne, its antiquity and importance are enhanced.
But against Aylesford there are three strong arguments. They are not only strong, they are insuperable. The first is the immense width of valley that would have to be crossed to reach it. That is, the immense tract of uncertain, wooded way, without a view either of enemies or of direction.
The second is the clay. A belt of gault of greater or lesser width stretches all along the Downs just below the chalk. Here it is particularly wide, and no straight line can be taken from Wrotham to the Aylesford gravels without crossing nearly two miles of this wretched footing, which, throughout its course, the road has most carefully avoided. That a ford of great antiquity was there; that the men of the sandy heights used it; that the Romans used so admirable a ford (it is gravel near the river on either side), that they bridged it, that they made a causeway over the clay, and that this causeway and that bridge were continuously used after their time, I am willing to believe; but not that the prehistoric road along the chalk hills could have waded through all that clay to reach it, and have gone out of its way into the bargain.
Thirdly, there is the clinching fact that a number of prehistoric remains, Kit's Coty House and the rest, lie to the north of such a crossing, and that to reach Boxley itself, a site indubitably dependent upon the prehistoric road, a man crossing at Aylesford would have to turn back upon his general direction.
It must further be remembered that by the seventh century some of the valleys had acquired firm roads, inherited from the old civilisation, and that in the rout after a battle, an army making for a tidal river, and not able to choose their own time of crossing (as can a wayfarer), would certainly make for a point as far up the stream as possible and for a bridge.
If Cuxton and Aylesford, then, are to be neglected (as I think they certainly must be), there remain only Lower Hailing and Snodland.