ocr: when the Ptolemies and the Seleucids were struggling for control of Palestine, the Nabataeans threw in their lot with the Seleucids, in the hope, no doubt, of seeing the Ptolemies weakened. Egypt was, after all, ac dangerous and proximate rival of the Nabataeans in the all-important Arabian and Red Sea trade. The next stage in the architectural history of Petra, as revealed by the current excava- tions, is perhaps the most important historic- ally, although it has left few traces. The primitive structures described above contin- ued in use until the first century B.C., but at some point during ...