Why did the Abbasid Revolution overthrow the Umayyad Caliphate?

The Abbasid Revolution in the mid-8th century overthrew the Umayyad Caliphate due to widespread discontent originating in the eastern province of Khorasan. Led by the Abbasid dynasty and military commanders like Abu Muslim, the revolutionary forces united long-settled Khorasani Arabs and non-Arab Muslim converts to establish the Abbasid Caliphate in 750.

What we know

• The Abbasid revolution originated in the eastern province of Khorasan, driven by widespread discontent with Umayyad rule far from the Syrian center of power. [2, 3]
• The backbone of the revolutionary forces consisted of long-settled Khorasani Arabs, many affiliated with South Arabian confederations, alongside non-Arab Muslim converts and Iranian Muslims. [2]
• Abu Muslim played a decisive organizational and military role by directing the uprising, seizing Merv, and leading the advance that collapsed Umayyad authority. [2, 5]
• The overthrow of the Umayyad Caliphate in 750 resulted in the establishment of the Abbasid Caliphate, which shifted its government base to Iraq. [2, 3]

Still open

• The precise ethnic origins of Abu Muslim remain debated in historical sources.

Where to go next

• whoWho was Abu Muslim and what was his fate?
• whereWhat was the role of Khorasan in early Islamic revolts?
• what followedHow did the Abbasid capital move to Baghdad?
• compared withWhat were the key differences between Umayyad and Abbasid rule?
• the bigger pictureHow did the Umayyad Caliphate govern before its collapse?
• an unexpected connectionHow did an enslaved youth in Kufa become a powerful revolutionary commander?Abu Muslim was enslaved in Kufa during his youth before being released by Shi'ite activists linked to the Abbasids, rising to lead the military campaign that dismantled an entire empire.

Sources

• [1]Abbasid Revolution (Wikidata Q5933860) · CC0 1.0
• [2]Abbasid revolution · CC BY-SA 4.0
• [3]Abbasid Caliphate · CC BY-SA 4.0
• [4]Abbasid dynasty · CC BY-SA 4.0
• [5]Abu Muslim · CC BY-SA 4.0