Amman ( ), sometimes spelled Ammann (Arabic عمان ʿAmmān), is the capital city of the Hashemite Kingdom of Jordan, a city of 2,125,400 inhabitants (2005 estimate), and the administrative capital and commercial center of Jordan. It is also the largest city in Jordan. It is the capital city of Amman Governorate.

History

In 326 AD, Christianity became the religion of the empire and Philadelphia became the seat of a bishopric during the beginning of the Byzantine era. One of the churches of this period can be seen on the city's Citadel.

Philadelphia was renamed Amman during the Ghassanian era, and flourished under the Caliphates (with nearby capital) of the Umayyads (in Damascus) and the Abbasids (in Baghdad). It was then destroyed by several earthquakes and natural disasters and remained a small village and a pile of ruins until the Circassians settlement in 1887. The tide changed when the Ottoman Sultan decided to build the Hejaz railway, linking Damascus and Medina, facilitating both the annual hajj pilgrimage and permanent trade, putting Amman, a major station, back on the commercial map.

In 1921, Abdullah I chose Amman as seat of government for his newly-created state, the Emirate of Transjordan, and later as the capital of the Hashemite Kingdom of Jordan. As there was no palatial building, he started his reign from the station, with his office in a train car. Amman remained a small city until 1948, when the population expanded considerably due to an influx of Palestinian refugees from what is now Israel. Amman has experienced exceptionally rapid development since 1952 under the leadership of two Hashemite Kings, Hussein of Jordan and Abdullah II of Jordan.

In 1970, Amman was the site of major clashes between the Palestine Liberation Organization (PLO) and the Jordanian army. Everything around the Royal Palace sustained heavy damage from shelling. Most of Amman suffered great damage from PLO rockets and the Jordanian army's shells.

The city's population continues to expand at a dizzying pace (fueled by refugees escaping the wartime events in the occupied territories and Iraq). The city received refugees from these countries on a number of occasions. The first wave of Palestinian refugees arrived from what is now Israel in 1948. A second wave after the Six-Day War in 1967. A third wave of Palestinian and Jordanian and Southeast Asians, working as domestic workers, refugees arrived in Amman from Kuwait after the Gulf War of 1991. The first wave of Iraqi refugees settled in the city after the first Gulf War, with a second wave also arriving after the 2003 invasion of Iraq. During the last 10 years the amount of new buildings within the city has increased dramatically with new districts of the city being founded at a very rapid pace (particularly so in West Amman), straining the very scarce water supplies of Jordan as a whole, and exposing Amman to the hazards of rapid expansion in the absence of careful municipal planning.