Mr. W. A. S. Robertson,[2651] on the other hand, states, on the authority of Professor Skeat, that ‘Rumenea’, the name by which, according to Lambarde,[2652] Romney was known to the Saxons, is compounded of the Gaelic word ruimen (marsh) and the Saxon affix ea (river); and he concludes that ‘before the Roman occupation there was in this great estuary sufficient land, uncovered by water, to be denominated ... Rum or Ruimen’. Again, arguing that the καινὸς λιμήν, or ‘new harbour’, mentioned by Ptolemy,[2653] was at Romney, he says that ‘if it was called into existence by ... the Rhee Wall, it follows that the Rhee Wall’ was ‘probably formed at least as early as the first century of the Christian era’.
If the ‘new harbour’ was at Romney! There is not the slightest evidence that it was there.[2654] As for the word ruimen, how can Mr. Robertson prove that it was applied to Romney Marsh ‘before the Roman occupation’? Moreover, supposing that the marsh was not embanked by the Britons, there was ‘sufficient land uncovered by water to be denominated Ruimen’ twice every day, when the tide was low, before the Rhee Wall was made; and the name lends no support to Mr. Robertson’s theory.
I do not attach much importance to the argument, first propounded by Sir W. Dugdale[2655] and often repeated since, that because the Britons, according to Tacitus[2656]—or rather, according to a speech put by Tacitus into the mouth of a British chief—were employed by the Romans in draining and embanking marshes, therefore the Romans enclosed this particular marsh. But, considering that Roman remains have frequently been discovered in that part of the marsh which lies on the east of the Rhee Wall,[2657] it is surely inexplicable that if the wall was built by the Britons, no Celtic remains have ever been found there.
Appach[2658] not only rejects the theory that the Britons built the Rhee Wall, but denies that Romney Marsh Proper was enclosed during the Roman occupation. He maintains that, in Caesar’s time, ‘the northern portion, at all events, and possibly the whole of the interval between the island of Romney and the high ground of Kent was open sea.’ For, he argues, ‘Lympne was the ancient Portus Lemanis ... that place could not have been a port unless there had been free access to it from the Channel, and it is clear from the manner in which the marsh and shingle were deposited, that there was always open sea between Lympne and the Channel until the interval between the ancient island at Romney and the high ground of Kent had been closed by the gradual growth of the marsh and shingle.’
The assumption upon which this argument rests has been already disproved: the Portus Lemanis was not at Lympne. Appach’s theory forces him to assume that the sediment which formed the marsh was deposited at an incredibly rapid rate. He maintains[2659] that ‘the upper portion of Romney Marsh, for a depth of thirty feet ... below its present surface (which would give sufficient water for the heaviest of Caesar’s ships at the lowest Spring tides) might very well have been deposited’ in ‘about five hundred years’. But, according to Elliott,[2660] the average rate at which the silt was deposited was not more than about one-eighth of an inch per annum.
Dowker, on the other hand, although he once regarded it as ‘evident that at the period of Caesar’s invasion the marsh was little better than a swamp, great part being under water at high tide’, maintained that the discovery of Roman pottery on the west of Dymchurch disproved Appach’s theory.[2661] But he did not take account of dates. Appach himself[2662] noted the discoveries which had been made near Dymchurch; but he observed that while some of the objects discovered had been pronounced by the Society of Antiquaries to be ‘decidedly Roman’, others had been attributed by the same body to subsequent periods; and he concluded that the marsh had not been enclosed before the middle of the fifth century.
This theory is pulverized by one fact which Appach ignores. Dymchurch is not the only place in Romney Marsh Proper where Roman remains have been found: they have been discovered in Eastbridge, at Newchurch, at Ivychurch, and indeed over the whole area.[2663] On the other hand, Welland Marsh, Guildford Marsh, and Denge Marsh—those parts of Romney Marsh, popularly so called, which extend westward of the Rhee Wall—have yielded none.[2664] The inference is certain: Romney Marsh Proper was enclosed during the Roman occupation of Britain.
6. The conclusions which we have now reached are, first, that the Rother did not, in the time of Caesar, enter the sea at Lympne, but debouched into the estuary near Appledore; secondly, that the marsh was then closed at West Hythe Oaks, and therefore that there was no harbour at Lympne; thirdly, that the Rhee Wall had not then been built, and therefore that the marsh was still flooded at spring tides by the inrush of the sea between Romney and Lydd; fourthly, that the Portus Lemanis was a pool harbour extending from West Hythe to a point nearly opposite Shorncliffe; and, lastly, that the Rhee Wall was built in Roman times.
But, as the reader will hereafter see, if these conclusions are erroneous, the error will not lead us astray when we have to determine the place where Caesar landed in Britain.