I. INTRODUCTION

After I had completed the researches which I undertook for the purpose of writing this article, I saw that if an able soldier, or even an intelligent civilian, who had a sufficient knowledge of ancient warfare, were to ask himself where Caesar landed in Britain, he could solve the problem after a brief inspection of the Ordnance Map. He would perceive that there was only one part of the Kentish coast on which Caesar could have expected to land, in the face of an enemy, and then to march into the interior, without incurring unnecessary loss. If he were told that a study of the tides had proved that Caesar must have landed elsewhere, he would reply, ‘There must be something wrong in your calculations. Perhaps you have neglected to allow for the influence which strong winds and other causes exert upon the tidal currents. Perhaps you have misinterpreted or unduly strained certain parts of Caesar’s narrative. It is even possible that Caesar himself may, from lapse of memory, have mis-stated the day on which he first landed. Any one of these suppositions is credible: but it is incredible that the experienced officer whom he sent to reconnoitre the British coast should have advised him to land below a range of hills when open country was more easily accessible; still more that he should have accepted the advice. It is absolutely certain that Caesar did not commit an act of folly which any general who knew his business would have avoided.’

But such a summary mode of treating the question would not convince the scholars who must be convinced before it can be set at rest; and the conclusion at which they have arrived is that it is insoluble. So said Mommsen:[2930] so say Mr. Warde Fowler,[2931] Mr. Tozer,[2932] and, apparently, Dr. Hodgkin;[2933] so said the late eminent geographer, H. Kiepert, according to whom the numerous attempts which have been made to determine Caesar’s landing-place ‘have, because of the vagueness of many expressions of the principal source [the Commentaries of Caesar], not attained more than a hypothetical value, even after three centuries of learned quarrels’.[2934] Not because of the vagueness of Caesar’s expressions, but because those who have commented upon them have not taken the trouble to inform themselves. The indications which Caesar gives are sufficient to enable any attentive reader to determine the place where he landed with such certainty that every doubt shall be removed,—if he knows how to use them; if, that is to say, he possesses sufficient collateral knowledge to enable him to understand what he reads. It is not enough to be a Latin scholar. It is necessary also to study the ancient geography of the coast of Kent; to be acquainted with the tidal phenomena of the English Channel; to have at least an elementary knowledge of seamanship; to know Caesar’s writings intimately, and not merely read the Fourth and Fifth Books for the occasion; and, above all, to gain that understanding of the principles of ancient warfare which can only be acquired by one who has studied the history of modern campaigns, and has learned, by experience or from intercourse with practical men, how things actually happen. No genius is needed; only industry, backed by common sense and by some intelligence and acumen; but such industry as may, perhaps, be thought disproportionate with the object. Not even Mommsen, with his colossal power of work, could spare the necessary time.