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Founding of Baghdad: al-Mansur’s Round City

On a site chosen by the caliph al-Mansur on the west bank of the Tigris, by an old village called Baghdad and some 30 km from the former Sasanian capital Ctesiphon, work began in the summer of 762 on a circular palace city officially named Madinat al-Salam, ‘the City of Peace’. Completed by 766 or 767, it became the capital of the Abbasid caliphate, and Baghdad grew into one of the largest cities in the world.

Date
between 30 July and 2 August 762 – between 766 and 767exact date unknown: an interval is given · duration: ≈ 4 years
Place
Round City of Baghdad (Madinat al-Salam)approximate locationtoday: west bank of the Tigris, Baghdad, Iraq · Middle East and Egypt
Participants
Al-Mansur, Abbasid Caliphate, Muhammad ibn Ibrahim al-Fazari
Threads
Middle East and Egypt (6th–10th c.)
Also known as
Madinat al-Salam; City of Peace; Round City; Madinat al-Mansur; Мадинат ас-Салам; Город мира; Круглый город; Мадинат аль-Мансур

After the revolution the Abbasids ruled from Kufa and other residences in Iraq, such as al-Anbar. Al-Mansur wanted a permanent capital for his court, his army and a growing bureaucracy, and chose a place where the Khorasan road met the Tigris and canals linked the river with the Euphrates, beside a village that already bore the Persian name Baghdad. The date was fixed by court astrologers — among them Nawbakht, Masha'allah and al-Fazari — and later sources give it as 30 July 762; according to al-Ya'qubi the building began on 2 August under four architects. The chroniclers speak of 100,000 workers and craftsmen and of costs of 18 million gold dinars or 100 million silver dirhams. The caliph’s palace and the mosque were ready in 763, when al-Mansur moved in, and the rest of the city by 766 or 767.

The city was a circle about two kilometres across — the medieval figures differ — enclosed by a moat and a double brick wall with four gates named after the roads they opened onto: the Kufa, Basra, Khorasan and Syria gates. From each gate a straight road led to the centre, where the caliph’s Palace of the Golden Gate, crowned by a green dome, stood beside the great mosque. The circular plan with four gates recalls Sasanian round cities such as Gur (Firuzabad) and Darabgard, and the palace followed Iranian models; Jacob Lassner has argued that the Round City was essentially a palace city housing the court and the government offices. Troops from Khorasan and Transoxiana were settled in suburbs to the north-west, and al-Mansur moved the markets out to the separate quarter of al-Karkh.

Baghdad soon eclipsed Ctesiphon, which was quickly deserted, and became the centre of Abbasid government, trade and learning. The Round City itself was partly ruined in the siege of 812–813, during the war between al-Amin and al-Ma'mun, and ceased to be the caliph’s residence; nothing of it survives, and its plan is known only from medieval descriptions, reconstructed since G. Le Strange (1900). Stories about the founding circulated early: al-Tabari tells how Christian monks had foretold that a man called Miklas would build a city there, and how the caliph recalled that this had been his childhood name.

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Connections

Causes and preconditions

  • Abbasid Revolution9 June 747 – between July and August 750 · Middle East and Egyptthe new dynasty moved the centre of the caliphate to Iraq

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Sources

  1. Wikipedia (English): Round City of Baghdad
  2. Wikipedia (English): History of Baghdad
  3. Wikipedia (English): Al-Mansur
  4. Wikipedia (Russian): Круглый город
  5. Wikipedia (Russian): Багдад
  6. Wikipedia (Russian): Абу Джафар аль-Мансур
  7. Lassner J. The Topography of Baghdad in the Early Middle Ages. — Detroit: Wayne State University Press, 1970.
  8. Le Strange G. Baghdad during the Abbasid Caliphate from Contemporary Arabic and Persian Sources. — Oxford: Clarendon Press, 1900.