Nobody knows who built the first Bridge. It was there in the fourth century--a bridge of timber provided with a fortified gate, one of the gates of the City. Who put it up, and when--how long it stood--what space there was between the piers--how broad it was--we do not know. Probably it was quite a narrow bridge consisting of beams laid across side by side and a railing at the side. That these beams were not close together is known by the fact that so many coins have been found in the bed of the river beneath the old Bridge. [Illustration: ROYAL ARMS OF ENGLAND FROM RICHARD I. TO EDWARD III. (_From the wall arcade, south aisle of nave, Westminster Abbey._)] Besides the Bridge there were ferries across the river, especially between Dowgate and the opposite bank called St. Mary Overies Dock, where was afterwards erected St. Mary Overies Priory, to which belonged the church now called St. Saviour's, Southwark. The docks at either end of the old ferry still remain. The Bridge had many misfortunes: it is said to have been destroyed by the Danes in 1013. Perhaps for 'destruction' we should read 'damage.' It was, however, certainly burned down in the Great Fire of 1136. Another, also of wood, was built in its place and, in the year 1176, a bridge of stone was commenced, which took thirty years to build and remained standing till the year 1831, when the present Bridge was completed and the old one pulled down. The Architect of this stone Bridge, destined to stand for six hundred and fifty years, was one Peter, Chaplain of St. Mary Colechurch in the Old Jewry (the church was destroyed in the Great Fire and not rebuilt).