Editing Anbar (town) (section)

=== Islamic period ===
The city fell to the [[Rashidun Caliphate]] in July 633, after a fiercely fought siege.{{sfn|ODLA|loc="Peroz-Shapur" (J. Wienand), p. 1159}} When [[Ali ibn Abi Talib]] (r. 656–661) passed through the city, he was warmly welcomed by ninety-thousand Jews who then lived there, and he "received them with great friendliness."<ref>{{cite book |author-last=Sherira Gaon |author-link=Sherira Gaon |title=The Iggeres of Rav Sherira Gaon |translator=Nosson Dovid Rabinowich |publisher=Rabbi Jacob Joseph School Press - Ahavath Torah Institute Moznaim|date=1988 |location=Jerusalem|page=125 |language=en |oclc=923562173 |title-link=Iggeret of Rabbi Sherira Gaon }}</ref>

The Arabs retained the name (''Fīrūz Shābūr'') for the surrounding district, but the town itself became known as '''Anbar''' ([[Middle Persian]] word for "granary" or "storehouse") from the granaries in its citadel, a name that had appeared already during the 6th century.{{sfn|Streck|Duri|1960|p=484}}{{sfn|Le Strange|1905|pp=65–66}} According to [[Baladhuri]], the third mosque to be built in Iraq was erected in the city by [[Sa'd ibn Abi Waqqas]].{{sfn|Streck|Duri|1960|p=485}} Ibn Abi Waqqas initially considered Anbar as a candidate for the location of one of the first Muslim garrison towns, but the fever and fleas endemic in the area persuaded him otherwise.{{sfn|Streck|Duri|1960|p=485}}

According to medieval Arabic sources, most of the inhabitants of the town migrated north to found the city of [[Hdatta]] south of [[Mosul]].<ref name=EOI>{{cite encyclopedia | last = Lewis | first = Bernard | author-link = Bernard Lewis | editor = Hertzfeld, E | encyclopedia = Encyclopaedia of Islam | isbn = 978-90-04-08118-5 | title = Ḥadīt̲a  | url = https://books.google.com/books?id=d9JSXwAACAAJ | access-date = 12 October 2012 | edition = Second | year = 1986 | publisher = BRILL | volume = 3 | page = 29 }}</ref> The famous governor [[al-Hajjaj ibn Yusuf]] cleared the canals of the city.{{sfn|Streck|Duri|1960|p=485}}

[[As-Saffah|Abu'l-Abbas as-Saffah]] ({{reign|749|754}}), the founder of the [[Abbasid Caliphate]], made it his capital in 752, constructing a new town half a ''[[farsakh]]'' ({{circa| {{convert|2.5|km|mi}}}}) to the north for his [[Khurasan]]i troops. There he died and was buried at the palace he had built. His successor, [[al-Mansur]] ({{Reign|754|775}}), remained in the city until the founding of [[Baghdad]] in 762.{{sfn|Streck|Duri|1960|p=485}}{{sfn|Le Strange|1905|p=66}} The Abbasids also dug the great [[Nahr Isa]] canal to the south of the city, which carried water and commerce east to Baghdad.{{sfn|Streck|Duri|1960|p=485}}{{sfn|Le Strange|1905|pp=66–67}} The Nahr al-Saqlawiyya or Nahr al-Qarma canal, which branches off from the Euphrates to the west of the city, is sometimes erroneously held to be the Nahr Isa, but it is more likely that it is to be identified with the pre-Islamic Nahr al-Rufayl.{{sfn|Streck|Duri|1960|p=485}}

It continued to be a place of much importance throughout the Abbasid period.{{sfn|Peters|1911}} Caliph [[Harun al-Rashid]] ({{reign|786|809}}) stayed at the town in 799 and in 803.{{sfn|Streck|Duri|1960|p=485}} The town's prosperity was founded on agricultural activities, but also on trade between Iraq and Syria.{{sfn|Streck|Duri|1960|p=485}} The town was still prosperous in the early 9th century, but the [[Anarchy at Samarra|decline of Abbasid authority]] during the later 9th century exposed it to [[Bedouin]] attacks in 882 and 899. In 927, the [[Qarmatians]] under [[Abu Tahir al-Jannabi]] sacked the city during [[Qarmatian invasion of Iraq (927–928)|their invasion of Iraq]], and the devastation was compounded by another Bedouin attack two years later.{{sfn|Streck|Duri|1960|p=485}} The town's decline accelerated after that: while the early 10th-century geographer [[Istakhri]] still calls the town modest but populous, with the ruins of the buildings of as-Saffah still visible, [[Ibn Hawqal]] and [[al-Maqdisi]], who wrote a generation later, attest to its decline, and the diminution of its population.{{sfn|Streck|Duri|1960|p=485}}

The town was sacked again in 1262 by the [[Mongol Empire|Mongols]] under [[Kerboka]].{{sfn|Streck|Duri|1960|p=485}} The [[Ilkhanids]] retained Anbar as an administrative centre, a role it retained until the first half of the 14th century; the Ilkhanid minister [[Shams al-Din Juvayni]] had a canal dug from the city to [[Najaf]], and the city was surrounded by a wall of sun-dried bricks.{{sfn|Streck|Duri|1960|p=485}}