The towns and cities of England owe their origin to various causes. Some arose around the walls of great castles, some as trading centres or harbours, some clustered around the palace of a bishop, and others sheltered themselves beneath the shadow of a monastery. Peterborough, or Medeshamstede, is of this last class. It is a monastic town, and owes its existence to the great fenland Monastery of St. Peter, the minster church of which is now this beautiful Cathedral. Peada, the son of Panda, King of Mercia, first founded a monastery here in 654, of which Saxulph was the first abbot. The Pagan Danes came in 870 with fire and sword, and wrought fearful havoc in all this region, burning the holy house of Medeshamstede, and slaughtering the monks. For a hundred years the monastery lay in ruins; then came the religious revival under the rule of Dunstan and King Edgar. Monastic houses increased in number greatly, and Bishop Ethelwold of Winchester began to rebuild the waste places of the ruined Saxon Medeshamstede, and constructed a minster, some foundations of which still remain. The Abbey flourished for nearly a century, but sad misfortunes befell. Hereward the Wake, the hero of Kingsley's story, the gallant "last of the English," was making his last brave stand against William the Norman, and in conjunction with the Danes attacked the Abbey, and wrought much destruction. Fires and robbers were also occasionally dread visitants, and at last, in the time of Henry I., a great fire destroyed the whole buildings. The then abbot was John de Sais, who set to work immediately to erect a new monastery. This was in 1117. Then was begun the glorious minster which is the pride and glory of the fenlands. Subsequent abbots continued the work. Abbots Martin de Vecti and William de Waterville completed the transepts and tower and part of the nave, which was finished by Abbot Benedict (1177-1193). There is a striking uniformity of design throughout all this Norman work, which shows that the builders followed one plan, and imitated the work of their predecessors. The western transept, however, shows evidences of the coming change, and when we come to the beautiful west front we find unmistakable Early English work. This part was probably finished in 1238, in the time of Abbot Walter of St. Edmunds, when the church was dedicated by Bishop Grosseteste of Lincoln. Abbot Robert de Lindsay, who liked not the windows of his monastery "stuffed with straw" to keep out wind and rain, filled many of them with glass, and built the lavatory in the cloister. Gradually the erection of the monastic buildings was being completed, and refectory and infirmary added, and Prior Parys built the Lady Chapel and one of the steeples at the close of the thirteenth century, which also saw the removal of the Norman windows from the aisles and the substitution of Early Decorated ones. This was a time of much splendour and magnificence for the Abbey, when Godfrey was