1340 The Stalls, the work of Alan de Walsingham, placed in the Octagon, the position of the Choir before the fall of the central Tower. 1400 (about) William de Walpol, prior, erected the great gate of the Abbey (Ely Porta). About this time erection of the Octagon or Campanile on the West Tower, followed by the strengthening of the piers below. 1440 Erection of the Cloisters, and towards the end of the century, Bishop Alcock's Chapel. 1534 Bishop West's Chapel. 1541 The Abbey dissolved by Henry VIII. and reconstituted as a Chapter of Dean and Canons. Robert Steward last Prior and first Dean. The conventional [Transcriber's Note: so in original, probably should be "conventual"] buildings sold and destroyed, portions only reserved for residence of Dean and Canons and other officers. The Guest Chamber used as the common Hall of the College, but converted at a later period into the Deanery. 1642 Dean Fuller deprived by the Parliament. During the Rebellion Ely occupied by Cromwell's soldiers, and the Cathedral said to have been used for stabling their horses. 1649 Commissioners under the Commonwealth survey and cause further destruction of the conventual buildings. 1676 Pavement of the Nave restored by Mr. Clopton. 1699 Fall of the north-west angle of the north-eastern Transept; rebuilt by Sir Christopher Wren. 1754 Extensive repairs of the roof of the Octagon and Choir by Bishop Mawson, and Deans Allix and Thomas. 1770 The stalls transferred from the Octagon to the Presbytery by Essex, architect, and important repairs of the fabric executed. 1771 Publication of Bentham's "History and Antiquities of Ely Cathedral" 1801 The upper parts of the Tower repaired. 1823 The Nave, Octagon, Lantern, and Transepts coloured, and the Stalls painted. This was done at considerable expense, and deemed at the time a great improvement. 1831 A new Organ put in the old case. 1842 A fire accidentally commenced in the roof of the Nave adjoining the Tower, but was soon extinguished. The roof of the Nave re-covered with lead. 1845 Commencement of the modern Restoration of the Cathedral under Dean Peacock. St. Catherine's Chapel rebuilt. South-western Transept restored. Interior of the western Tower opened and ceiled. 1847 Sir G. Gilbert Scott appointed architect. The stalls removed westward and Choir re-arranged. Painting of the Nave ceiling commenced, &c. A large number of stained windows introduced. 1851 The Organ re-modelled, enlarged and removed to the triforium. 1857 The east windows filled with stained glass. 1858 Restorations continued under Dean Goodwin. The Reredos erected. The Lantern reconstructed as a memorial to Dean Peacock. Western entrance repaired. Commencement of pavement of the Nave, &c., &c. Foundations of the South Aisle of the Choir repaired.