Observe, however, that no mention whatever is made of London in the Chronicle. Other and less important towns are mentioned. Anderida or Pevensey, Aquæ Solis or Bath, Gloucester, Chester, and many others; but of London there is no mention. Consider: London, though not much greater than other cities in the country—York, Verulam, Lincoln, Colchester, for instance—was undoubtedly the chief port of the country. We must not bring modern ideas to bear when we read of the vast trade, the immense concourse of merchants, and so forth. We need not picture miles of docks and countless masts. Roman London was not modern Liverpool. Its bulk of trade was perfectly insignificant compared with that of the present. When we begin to consider the mediæval trade of London this will become apparent. Still, it was, up to the coming of the Saxons, a vigorous and flourishing place, and the chief port of the country. Why, therefore, does the Chronicle absolutely pass over so great an event as the taking of London?

Such is the evidence of history. Let us consider next the evidence of topography. We shall understand what happened in London when we understand the exceptional position of London and the dangers to which the city in time of civil war was necessarily exposed.

We will go back to the beginning of all things—to the lie of the land on which London was planted. The reader, if he will consult that very admirable book, Loftie's History of London, will find in it a most instructive map. It shows the terrain before the city was built at all. The river Thames, between Mortlake on the west and Blackwall on the east, pursued a serpentine way, in the midst of marshes stretching north and south. There were marshes all the way. At spring tides, and at all tides a little above the common, these marshes were under water; they were always swampy and covered with ponds; half a dozen tributary brooks flowed into them and were lost in them. They varied greatly in breadth, being generally much broader on the south side than on the north. On this side the higher land rose up abruptly in a cliff or steep hill from twenty to five-and-thirty feet in height. The cliff, as we follow it from the east, approached the river, touched it at one point, and then receded again as it went westward. This point, where the cliff overhung the river, was the only possible place where the city could have been founded.

I call it a point, but it consisted of two hillocks, both about thirty-five feet high, standing on either side the little stream of Walbrook, where it flows into the Thames. On one of these hills, probably that on the west, was a small fortress of the Britons, constructed after the well-known fashion of hill forts, numberless examples of which remain scattered about the country. On the other hillock the Roman city, later on, was first commenced.

ROMAN PAVEMENT: LEADENHALL STREET

Here, at the beginning of the city, was instituted very early a ferry over the river. On the eastern hill the Romans built their forum and basilica, with the offices and official houses and quarters. When foreign trade began to increase, the merchants were obliged to spread themselves along the bank. They built quays and river-walls to keep out the water, and the city extended laterally to east and west, just as far as was convenient for the purposes of trade—that is, not farther than Fleet River on the west, and the present site of the Tower on the east. It then began to spread northward, but very slowly, because a mile of river front can accommodate a great working population with a very narrow backing of houses. When the city wall was built, somewhere about the year 360, the town had already run out in villas and gardens as far north as that wall. Outside the wall there was nothing at all, unless one may count a few scattered villas on the south side of the river. There was as yet no Westminster, but in its place a broad and marshy heath spread over the whole area now covered by the City of Westminster, Millbank, St. James's Park, Chelsea, and as far west as Fulham. Beyond the wall on the north lay dreary, uncultivated plains, covered with fens and swamps, stretching from the walls to the lower slopes of the northern hills, and to the foot of an immense forest, as yet wholly untouched, afterwards called the Middlesex Forest. Fragments of this forest yet remain at Hampstead, Highgate, Epping, and Hainault. All through this period, therefore, and for long after, the City of London had a broad marsh lying on the south, another on the west, a third on the east, while on the north there stretched a barren, swampy moorland, followed by an immense impenetrable forest. Later on a portion of the land lying on the north-west, where is now Holborn, was cleared and cultivated. But this was later, when the Roman roads which led out of London ran high and broad over the marshes and the moors and through the forest primeval. The point to be remembered as connected with the marshes is this: Around most great towns there is found a broad belt of cultivated ground protected by the wall and the garrison. Here the people grow for their own use their grain and their fruit, and pasture their beasts and their swine. London, alone among great cities, never had any such home farm until the marsh was reclaimed. The cattle, which were driven daily along the roads into the city, grazed on pastures in Essex farms, beyond the forest and the River Lea. The corn which filled her markets came down the river in barges from the inland country. All the supplies necessary for the daily food of the city were brought in from the country round. Should these supplies be cut off, London would be starved.