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The Abbasid Revolution: Coalition and Caliphate

The Abbasids rose through a revolutionary coalition in Khurasan whose members crossed ethnic and social lines. Their victory shifted imperial power eastward and opened new roles for eastern elites without becoming a national restoration of Iran.

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Part 1

Umayyad government faced opposition for many reasons, including dynastic rivalries, disputes over taxation and status, sectarian claims, and provincial grievances. In Khurasan, Arab settlers and non-Arab converts were internally divided rather than two unified ethnic blocs. Abbasid organizers turned these overlapping conflicts into a revolutionary movement.

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Part 2

Abu Muslim became the decisive Abbasid commander in Khurasan, but reports of his birth, parentage, ethnicity, and even original name conflict. Abu Muslim's origins remain uncertain. His ability to mobilize varied supporters is historically clearer than later efforts to claim him for a single nation or lineage.

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Part 3

The Abbasid uprising was a multiethnic movement built by a Khurasani coalition of Arab tribal forces, non-Arab converts, local elites, and networks loyal to the Abbasid family. Black banners unified participants whose goals were not identical. Victory in 750 created a new caliphate, not an Iranian nation-state.

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Part 4

Al-Mansur founded Baghdad in the 760s as an Abbasid capital near older Mesopotamian and Sasanian centers. Its round-city plan served caliphal government, while officials and artisans from many regions built and supplied it. Iranian precedents influenced court and administration within a new Arabic-speaking imperial synthesis.

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Part 5

The Barmakids, a family with roots in Balkh, rose to exceptional influence as Abbasid administrators and patrons before their fall in 803. Their careers show how eastern elites entered caliphal service and shaped governance. They do not make the Abbasid state a disguised ethnic restoration.

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Part 6

Al-Mansur ordered Abu Muslim's killing in 755 after the general's power had become a political threat. His death provoked grief, memory-making, and revolts in eastern Iran, some of which attached new religious claims to his name. The episode reflects violent caliphal consolidation rather than a timeless ethnic duel.

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Part 7

Abbasid Baghdad hosted vigorous translation, scholarship, and administration in Arabic with participation from Iranian, Syriac Christian, Arab, Central Asian, and other communities. Bayt al-Hikmah was a royal library within this larger ecology, not its command center. The period is best understood through connected institutions rather than ethnic possession of ideas.

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