Petra, Capital of Nabatea

The Greek name Petra ("Rock") probably replaced the biblical name Sela. Remains from the Palaeolithic and the Neolithic periods have been discovered at Petra, and Edomites are known to have occupied the area about 1200 BC. Centuries later the Nabataeans, an Arab tribe, occupied it and made it the capital of their kingdom. In 312 BC the region was attacked by Seleucid forces, who failed to seize the city. Under Nabataean rule, Petra prospered as a centre of the spice trade that involved such disparate realms as China, Egypt, Greece, and India, and the city's population swelled to between 10,000 and 30,000.

When the Nabataeans were defeated by the Romans in AD 106, Petra became part of the Roman province of Arabia but continued to flourish until changing trade routes caused its gradual commercial decline. After an earthquake (not the first) damaged the city in 551, significant habitation seems to have ceased. The Islamic invasion occurred in the 7th century, and a Crusader outpost is evidence of activity there in the 12th century. After the Crusades, the city was unknown to the Western world until it was rediscovered by the Swiss traveller Johann Ludwig Burckhardt in 1812.

The ruins are usually approached from the east by a narrow gorge known as the Sik (Siq, or Wadi as-Sik). Among the first sites viewed from the Sik is the Khasneh ("Treasury"), which is actually a large tomb. Ad-Dayr ("the Monastery") is one of Petra's best-known rock-cut monuments; it is an unfinished tomb facade that during Byzantine times was used as a church. Many of the tombs of Petra have elaborate facades and are now used as dwellings. The High Place of Sacrifice, a cultic altar dating from biblical times, is a well-preserved site. To support the ancient city's large population, its inhabitants maintained an extensive hydrological system, including dams, cisterns, rock-carved water channels, and ceramic pipes. Excavations begun in 1993 revealed several more temples and monuments that provide insight into the political, social, and religious traditions of the ancient city. The ruins are vulnerable to floods and other natural phenomena, and increased tourist traffic has also damaged the monuments. In 1985 Petra was designated a UNESCO World Heritage site. 

As one of the most spectacular sites in the Middle East, Petra has long attracted travellers and explorers. During the 19th century, the site was visited and documented by several Europeans, after J. L. Burckhardt's initial visit. A synthesis of the site was published by Libbey and Hoskins in 1905, presenting one of the first overviews in print. Archaeological excavations began in earnest at the turn of the century, with the earliest scientific expedition being published in Arabia Petraea in 1907, by A. Musil. In the 1920s R. E. Brnnow and A. von Domaszewski surveyed the site and published an ambitious mapping project in their Die Provincia Arabia. This survey has since undergone many necessary revisions, the most recent of which was published by Judith McKenzie in 1990.

Modern excavations continue to increase our understanding of the site and correct the work of earlier scholars. In 1958, P. J. Parr and C. M. Bennett of the British School of Archaeology began an excavation of the city centre which remains the most informative and scientific to date. Recently, the Petra/Jerash Project, undertaken by the Jordanian Department of Antiquities, the University of Jordan, the University of Utah, and Swiss archaeologists, have excavated a number of monuments at these two sites. Architectural remains now visible at Petra indicate a thriving city, however, despite almost 100 years of excavation, only one-percent of the city been investigated. 

The Great Temple was first explored by Brnnow and von Domaszewski, but it was Bachmann, in his revision of the Petra city plan, who postulated the existence of a "Great Temple," aligned with the Colonnade Street, lying on the hillside to the south. He speculated that the temple was approached through a monumental Propylaeum with a grand staircase leading into a colonnaded, terraced Lower Temenos, or sacred precinct. Another broad monumental stairway led to a second, Upper Temenos. At its centre was the temple, with yet another flight of stairs leading into the temple proper. While no standing structures were revealed before these excavations, the site is littered with architectural fragments, including column drums, probably toppled by one of the earthquakes which rocked the site. Given the promise of the Great Temple precinct and its importance in understanding Petra's architectural and intercultural history, it is remarkable that it remained unexcavated until 1993 when the Brown University investigations began.