Since the resettlement of London in 886 there has been no interruption of the continuity of city life and customs, and it is very probable that some of the institutions shaped by the great organiser, whom William Morris called the one man of genius who has ever ruled in England, remain to this day. CHAPTER II RIVERS AND FORDS And dream of London, small and white and clean, The clear Thames bordered by its gardens green. _The Earthly Paradise._ The city of London, when the Roman garrison was withdrawn from its walls, occupied two hills on the north river-bank, between which ran the Walbrook. The river, which still retains its British or pre-British name of Thames,[28] spread, as may be seen from a geological map, over wide tracts of morass, which at an early time began to be protected by embankments, which are "no less than 50 feet above low water, and, counting side creeks, 300 miles long." The Chronicle of Bermondsey records of a flood in 1294-95:--"Then was made the great breach at Retherhith; and it overflowed the plain of Bermundeseye and the precinct of Tothill." The French Chronicle, written some two generations afterwards, shows that this was still remembered as "Le Breche." Edward I. at once issued a mandate that the banks from Lambeth to Greenwich should be viewed and repaired. Stow, under Westminster, says that in 1236 the river "overflowing the banks made the Woolwich marshes all on a sea" and flowed into Westminster Hall; and again in 1242 "drowned houses and fields by the space of six miles" on the Lambeth side. In 1448 "the water brake in out of Thames beside Lymeost and in another place."[29] Howel (1657) writes: "The Thames often inounds the bankes about London, which makes the grounds afterwards more fertile." [Illustration: FIG. 16.--EARLIEST PRINTED VIEW OF LONDON FROM THE CHRONYCLE OF ENGLONDE, PYNSON 1510.] The embankments seem to have been called walls. The names of Bermondsey Wall and Wapping Wall still survive opposite one another; and "wall" enters into the names of several places bordering on the river, as Millwall and Blackwall, and St. Peter's on the Wall, at Bradwell, Essex, where the north bank ends. At Lambeth Pennant noted that the name Narrow Walls occurred. The general opinion is that these banks are either Roman or pre-Roman work. Wren thought Roman.[30] Before the locks were made on the river the tide ran up past Richmond to near the inlet of the Mole.[31] London held the jurisdiction over the river from Yanlet to Staines from the twelfth century at least. The limit at either end is marked by a "London Stone."