In 831 A.D. the Khalif El Mamûn restored the Dome of the Rock, and if I am correct, enclosed it with an outer wall and gave it its present appearance. The beams in the roof of the arcade bear, as above stated, the date 913 A.D.: a well-carved wooden cornice, hidden by the present ceiling, must then have been visible beneath them. In 1016 A.D. the building was partly destroyed by earthquake. To this date belong restorations of the original mosaics in the dome, as evidenced by inscriptions. The present wood-work of the cupola was erected by Husein, son of the Sultan Hakem, as shown by an inscription dated 1022 A.D. The place next fell into the hands of the Crusaders, who christened it Templum Domini, and established in 1112 A.D. a chapter of Canons. The Holy Rock was then cut into its present shape and covered with marble slabs, an altar being erected on it. The works were carried on from 1115 A.D. to 1136 A.D. The beautiful iron grille between the pillars of the drum, and various fragments of carved work are of this date, including small altars with sculptured capitals, having heads upon them--abominations to the Moslem, yet still preserved within the precincts. The interior of the outer wall was decorated in the twelfth century with frescoes, traces of which still remain. The exterior of the same wall is surmounted by a parapet, with dwarf pillars and arches, which is first mentioned by John of Wurtzburg, but must be as old as the round arches of the windows below. The Crusaders would seem to have filled up the parapet arches, and to have ornamented the whole with glass mosaic, as at Bethlehem. In 1187 A.D. Saladin won the city, tore up the altar, and once more exposed the bare rock, covered up the frescoes with marble slabs, and restored and regilded the dome, as evidenced by an inscription in it dating 1189 A.D. In 1318 A.D. the lead outside and the gilding within were restored by Nakr ed Dîn, as evinced by an inscription. In 1520 A.D. the Sultan Soliman cased the bases and upper blocks of the columns with marble. The wooden cornice, attached to the beam between the pillars, seems to be of this period, and the slightly pointed marble casing of the arches under the dome is probably of the same date. The windows bear inscriptions of 1528 A.D. The whole exterior was at this time covered with Kishâni tiles, attached by copper hooks, as evidenced by inscriptions dated 1561 A.D. The doors were restored in 1564 A.D., as also shown by inscriptions. The date of the beautiful wooden ceiling of the cloisters is not known, but it partly covers the Cufic inscription, and this dates 72 A.H. (688 A.D.), and it hides the wooden cornice, dating probably 913 A.D. The ceiling is therefore probably of the time of Soliman. In 1830 A.D. the Sultan Mahmûd, and in 1873-5 A.D. the late ’Abd el ’Azîz, repaired the Dome, and the latter period was one specially valuable for those who wished to study the history of the place.