Norwich was then an important town; in the Middle Ages it ranked as the second city in the kingdom. Its prosperity was chiefly due to its large trade in wool. It is a moot point whether the town was ever a settlement of the Romans, no traces of such occupation having ever been discovered. The castle mound, no doubt, formed some part of the earthworks of an earlier stronghold. The word Norwich is probably of Norse origin, meaning the north village or the village on the North Creek ("_wic_"--_i.e._ a creek). The city stood on a tidal bay in 1004, in which year the Danes under Sweyn completely devastated and ruined the town in revenge for the massacre of their countrymen by Aethelred the Unready two years before. So that the history of the town of Norwich, as we now know it, may be said to have started directly after this. The foundation-stone of the cathedral was laid in 1096; and upon it, according to the _Registrum Primum_, the following inscription is said to have been placed:--"In nomine patris et filii et spiritus Sancti Amen Ego Herbertus Episcopus apposui istum lapidem." (In the Name of the Father and of the Son and of the Holy Ghost, Amen, I, Herbert the Bishop, have placed this stone.) It was the custom of the Norman builders to start building from the easternmost part of the church, as the more sacred part of the structure, and then build westwards; so that probably this foundation-stone, for which diligent search has been made in vain, was in the eastmost wall of the original Norman Lady Chapel--in fact, the _Registrum Primum_ describes how Herbert began the work "where is now the chapel of the Blessed Mary." This chapel was demolished to make way for the beautiful thirteenth-century Lady Chapel which Dean Gardiner destroyed. The thirteenth-century builders of the Lady Chapel may have used Herbert's foundation-stone in their walling; Dean Lefroy quite lately, while repairing parts of the tower and east end, came across pieces of stone with beautiful "dog-tooth" ornament upon them, which had been used to repair the masonry that, it was evident, at one time had formed part of the thirteenth-century Lady Chapel. This must be so, since in no other part of the building save the arches now remaining in the extreme eastern wall of the procession path, which at one time gave access to the Lady Chapel, does such ornament occur. It is probable, and the more generally accredited supposition, that Herbert built the presbytery with its encircling procession path and the original trefoil of Norman chapel radiating therefrom;--the choir and transepts with the two chapels projecting eastwards and the first two bays of the nave. Harrod advances a theory that he completely finished the whole of the cathedral church, as well as the offices for the housing of the sixty monks who were placed therein, in 1101.