ocr: the problem of dating. Such a plan is inconceivable before the time of Trajan (A.D. 98-117), and it is much more likely to be of the middle or end of the second century. This is confirmed by the stratigraphy, which shows that the gate is later than the colonnaded street, across whose line it is set. As for the Qasr el-Bint, this is manifestly contemporary with the gateway and the temenos. The whole sacred precinct bears witness to the magnificence of second- century Petra, a magnificence that itself implies that the compound was built during the reign of the emperor Septimus Severus (193-211). ...