al-Saffah
Abu al-ʿAbbās ʿAbd Allāh ibn Muḥammad ibn ʿAlī al-Saffāḥ (c. 721 – June 754) was the founder and inaugural caliph of the ʿAbbāsid Caliphate, reigning from 749 to 754.[1][2] Bearing the epithet al-Saffāḥ ("the Blood-Shedder"), he directed the ʿAbbāsid Revolution that toppled the Umayyad Caliphate through a coalition of Persian and Arab forces, culminating in the decisive Umayyad defeat at the Battle of the Zab in early 750.[3] Al-Saffāḥ's brief tenure prioritized the consolidation of dynastic authority amid residual Umayyad resistance and internal factional threats, marked by systematic purges of former rivals to secure Abbasid supremacy.[4] He relocated the caliphal seat from Damascus to Kūfah in Iraq, aligning governance closer to Abbasid strongholds in Persia and facilitating administrative reorganization.[5] Notable military actions included dispatching forces to suppress uprisings, such as containing a revolt in Sindh in 751, though his rule emphasized stabilization over expansion.[5] Al-Saffāḥ succumbed to smallpox in 754 at age 32 or 33, bequeathing a nascent empire to his brother, Abū Jaʿfar al-Manṣūr, who further entrenched Abbasid power.[6][7] His legacy endures as the architect of a transformative shift from Syrian Umayyad dominance to an Iraqi-centered caliphate favoring Abbasid claims of prophetic lineage.[8]