This site in Jordan has been inhabited since very ancient times. Petra reached its greatest importance under the Nabataeans, an ancient people whose original homeland was in northeastern Arabia. They migrated westward in the 6th century BC and eventually settled at Petra. Not much is known about the Nabateans’ history before 312 BC, when Petra was unsuccessfully attacked by Seleucid forces. Petra was also made famous by the third Indiana Jones movie.