Undoubtedly famous for its rock cut architecture and water conduits system, this Jordanian ancient city of Petra is found on the slope of mountain Hor, in a basin among the mountains which form the eastern flank of Arabah (Wadi Araba), the large valley running from the Dead Sea to the Gulf of Aqaba. It is believed that this was built in the 6th century BC as the capital city of Nabataeans. Enclosed by towering rocks and watered by a perennial stream, Petra not only possessed the advantages of a fortress, but controlled the main commercial routes which passed through it to Gaza in the west, to Bosra and Damascus in the north, to Aqaba and Leuce Come on theRed Sea, and across the desert to the Persian Gulf.
It is found that settlements had begun in and around Petra in the eighteenth dynasty of Egypt (1550-1292 BC). It is listed in Egyptian campaign accounts and the Amarna letters as Pel, Sela or Seir. Though the city was founded relatively late, a sanctuary existed there since very ancient times. Stations 19 through 26 of the stations list of Exodus are places associated with Petra. The habits of the original natives may have influenced the Nabataean custom of burying the dead and offering worship in half-excavated caves. Although Petra is usually identified with Selawhich means a rock, the Biblical references refer to it as "the cleft in the rock", referring to its entrance.
The Semitic name of the city, if not Sela, remains unknown. The passage in Diodorus Siculus which describes the expeditions which Antigonus sent against the Nabataeans in 312 BC is understood to throw some light upon the history of Petra, but the "Petra" referred to as a natural fortress and place of refuge cannot be a proper name and the description implies that the town was not yet in existence. The name "Rekem" was inscribed in the rock wall of the Wadi Musa opposite the entrance to the Siq, but about twenty years ago the Jordanians built a bridge over the wadi and this inscription was buried beneath tons of concrete.
More satisfactory evidence of the date of the earliest Nabataean settlement may be obtained from an examination of the tombs. Few inscriptions of any length have been found at Petra, perhaps because they have perished with the stucco or cement which was used upon many of the buildings. The simple pylon-tombs which belong to the pre-Hellenic age serve as evidence for the earliest period. It is not known how far back in this stage the Nabataean settlement goes, but it does not go back farther than the 6th century BC.
A period follows in which the dominant civilization combines Greek, Egyptian and Syrian elements, clearly pointing to the age of the Ptolemies. Towards the close of the 2nd century BC, when the Ptolemaic and Seleucid kingdoms were equally depressed, the Nabataean kingdom came to the front. Under Aretas III Philhellene, the royal coins begin. The theatre was probably excavated at that time, and Petra must have assumed the aspect of a Hellenistic city.
In 106 AD, when Cornelius Palma was governor of Syria, that part of Arabia under the rule of Petra was absorbed into the Roman Empire as part of Arabia Petraea, becoming capital. The native dynasty came to an end, but the city continued to flourish. A century later, in the time of Alexander Severus, when the city was at the height of its splendor, the issue of coinage comes to an end. There is no more building of sumptuous tombs, owing apparently to some sudden catastrophe, such as an invasion by the neo-Persian power under the Sassanid Empire. Meanwhile, as Palmyra grew in importance and attracted the Arabian trade away from Petra, the latter declined. It seems, however, to have lingered on as a religious centre. A Roman road was constructed at the site. Petra declined rapidly under Roman rule, in large part from the revision of sea-based trade routes. In 363 an earthquake destroyed many buildings, and crippled the vital water management system.
The Nabataeans worshipped the Arab gods and goddesses of the pre-Islamic times as well as a few of their deified kings. One, Obodas I, was deified after his death. Dushara was the main male god accompanied by his female trinity: Al-‘Uzzá, Allat and Manāt. Many statues carved in the rock depict these gods and goddesses.
The Monastery, Petra's largest monument, dates from the 1st century BC. It was dedicated to Obodas I and is believed to be the symposium of Obodas the god. This information is inscribed on the ruins of the Monastery.
Christianity found its way to Petra in the 4th century AD, nearly 500 years after the establishment of Petra as a trade center. Athanasius mentions a bishop of Petra named Asterius. At least one of the tombs was used as a church. After the Islamic conquest of 629–632 Christianity in Petra, as of most of Arabia, gave way to Islam. During the First Crusade Petra was occupied by Baldwin I of the Kingdom of Jerusalem and formed the second fief of the barony of Al Karak with the title Château de la Valée de Moyse or Sela. It remained in the hands of the Franks until 1189. It is still a titular see of the Catholic Church.
Two Crusader-period castles are known in and around Petra. The first is al-Wu'ayra and is situated just north of Wadi Musa. It can be viewed from the road to "Little Petra". It is the castle of Valle Moise which was seized by a band of Turks with the help of local Muslims and only recovered by the Crusaders after they began to destroy the olive trees of Wadi Musa. The potential loss of livelihood led the locals to negotiate surrender. The second is on the summit of el-Habis in the heart of Petra and can be accessed via a flight of steps that begins near the tomb complex known as "the Monastery". According to Arab tradition, Petra is the spot where Moses (Musa) struck a rock with his staff and water came forth, and where Moses' brother, Aaron (Harun), is buried, at Mount Hor, known today as Jabal Haroun or Mount Aaron. The Wadi Musa or "Wadi of Moses" is the Arab name for the narrow valley at the head of which Petra is sited. A mountaintop shrine of Moses' sister Miriam was still shown to pilgrims at the time of Jerome in the 4th century, but its location has not been identified since.
But today, Petra is in danger due to many natural and artificial threats such as collapsing of structures, erosion, improper rain water drainage and withering. It also attracts large amounts of tourists daily which is unsustainable for the place. Visit the place and help it to be preserved for our future generations.