Stow's interpretations of names often read like bad jokes, not to say bad puns. We remember his Matfelon, his Sherehog, his Cripplegate and other curiosities of the kind. Sherborn Lane has now disappeared, but there can be little doubt the "burn" or "bourne" was a relic of the fosse of the first Roman London. It divides two wards, so was as ancient as those wards—namely, Cornhill and Langborne; and if there was any stream through it fell into Walbrook, between the parish church of St. Mary on the Woollen Hithe and St. Mary of the Woolchurch Haw. This corner, then near the modern Mansion House, was the north-western corner of the little fort, Dowgate was at the south-western, and Billingsgate at the south-eastern corner, while Mincing Lane, perhaps at Fenchurch Street, completed the rectangle. What formed the defence on this, the eastern side, we have no evidence, but it was probably one of the "shares, rilles, or streames" which so puzzled Stow. The Walbrook was 248 feet wide.
Roman Sandals (found in London).
It is evident, then, that the Roman London Bridge was well protected, but the town which grew round it lay open to any attack. Such a contingency was the rebellion of Boadicea, when Suetonius abandoned the bridge fort and open town and held to Verulam and Camalodunum, which had walls. We do not hear anything about the repairs of the bridge when the rebellion was over. It probably, as in so many other places, consisted of a few piers of massive masonry, and great beams, probably wide apart, formed the roadway. The line of coins found in the Thames may have been dropped as offerings to the river-god, or merely by careless passengers. They dated back to republican times, and ended only with the last years of the Roman occupation, long after the introduction of Christianity. It may be mentioned here that in the catalogue of Roach Smith (1854), from which we have borrowed some illustrations, is an account of a box which had perished, but which had contained tiers of iron coins, plated with silver, oxydised together in masses, being obviously base money coined to pass current in Britain in the reign of Claudius, A.D. 41. It was discovered in King William Street, almost the centre of the old fort. Forged denarii of lead or brass formed the larger part of those found in the Thames. The bridge was probably in a line with Botolph Lane, the old London Bridge of Peter of Colechurch being higher up, and the present London Bridge higher again. The Roman Bridge, frequently repaired, and frequently, too, broken down—as when Anlaf, the Dane, sailed up the Thames with his fleet in 993—was finally removed in favour of the nineteen arches and a drawbridge, which subsisted until 1831. (The site of the Roman Bridge is discussed in a paper on "Recent Discoveries in Roman London," in volume lx. of Archælogia.)
The Gates of the City: Aldersgate and Bridgegate.
Such, then, was Roman London during the greater part of the Roman occupation of Britain—as it is still, a city of suburbs.
Of the date of the building of the wall we have no certainty. A recent writer finds fault with my cautious statement in Historic London that "in 350 London had no wall," and would substitute 360. The wall was certainly built about that time or a little later, but may have been begun long before. It is evident that such a piece of work was not completed in a single year, even under the Roman Emperors. Perhaps—it is too easy to form theories—Constantine (Stow says Helena) projected it and left it to be finished by his successors. It had been completed by the reign of Theodosius, about A.D. 368.