They are the fragments of history which tradition has preserved, while history has coldly passed them by.[37] With this in the background as the _corpus_ of a legend-covered London Bridge, we come to the second period. London Bridge to the Norsemen of the tenth and eleventh centuries was a place of fierce fighting and struggle, a place of victory and death. The saga takes pains to describe this wondrous bridge[38] before it describes the great fight there and its capture by King Olaf, a fight which produced a war-rhyme which, in Laing's version, begins with the same words as the English nursery rhyme, "London Bridge is broken down!"[39] and which Morris renders as a tribute to King Olaf, "thou brakest down London Bridge." There is little wonder, then, that the men of King Olaf took back with them to saga-land a great memory of this bridge and this fight, transferred to it their own variant of the world-wide treasure legend, and made a legend not of money treasure, but of regained health to a crippled warrior. The corresponding non-British version of Brittany helps us to understand that the cure of disease was originally associated with the gains of treasure, and in the Norse version the treasure incident is altogether dropped, but in its place is the recovery of health, a treasure more in accord with the sterner needs and recollections of a great fight. The Norse story is helpful to us as showing how London Bridge could enter into the legends of a people, and remain with them even after that people was no longer living in Britain, and it becomes therefore a valuable addition to the evidence for the more ancient transference from Britain to Brittany of the original legend. Altogether the piecing together of the items of historical value in this legend is most complete. We have not only recovered for history hitherto lost conceptions of the place held by Roman Lundinium among the Celtic tribesmen, but we have recovered also evidence of the true culture-position of the Celtic tribesmen towards their Roman conquerors. The examination of this legend may have been long and tedious, but the result is, I think, commensurate. It illustrates the power of tradition to set historical data in their proper environment, to restore the proportion which they bear to unrecorded history, and if the student will but follow the evidence carefully, I think he will find these results.