What was the most effective pollitical rebellion against the abbasids?
Probably the Fatimid revolt Rise The Abbasid caliphs officially based their claim to the caliphate on their descent from Abbas ibn Abd al-Muttalib (566 – 662), one of the youngest uncles of Muhammad, by virtue of which descent they regarded themselves as the rightful heirs of Muhammad as opposed to the Umayyads. The Umayyads were descended from Umayya, and were a clan separate from Muhammad’s in the Quraish tribe. The Abbasids also distinguished themselves from the Umayyads by attacking their moral character and administration in general. The Abbasids also appealed to non-Arab Muslims, known as mawali, who remained outside the kinship-based society of Arab culture and were perceived of as a lower class within the Umayyad empire. Muhammad ibn ‘Ali, a great-grandson of Abbas, began to campaign for the return of power to the family of Muhammad, the Hashimites, in Persia during the reign of Umar II, Muhammad ibn Ali. During the reign of Marwan II, this opposition culminated in the rebellio
