With the rise of the Umayyads the pure Arabs found greater...
With the rise of the Umayyads the pure Arabs found greater favour with the rulers than the clients of the subject races. This policy which, most probably, had been initiated by the third Caliph, no doubt, for justifiable reasons, would not have proved disastrous in itself if Yazid had not perpetrated the horrible deeds which are known as the tragedy of Karbala.
The old rivalry of the Umayyads and the Hashimites, which had remained subdued during the life-time of the Prophet, now manifested itself in many ways.
All these factors led to what is known as the ‘Abbasids propaganda carried on in collaboration with the Shi‘ites in the name of Hashim who was acceptable both to the supporters of ‘Ali and the descendants of ‘Abbas as against the Umayyads who had taken possession of the State and were living in luxury, while their more celebrated Quraish brethren were forced to act merely as spectators of the splendour of the rival branch.
The relationship of the Hashimites and the ‘Alids with the Umayyads would appear from the following genealogical tables. The ‘Abbasid propaganda ultimately bore fruit and the House of ‘Abbas, mainly with the help of the Iranians who had flocked to Abu Muslim, an Iranian leader of great courage and patriotic fervour, succeeded in their machinations. The Umayyads were over-thrown; Marwan, the last Caliph was slain on the 15th Dh. H.
132/August 5, 750, followed by a general massacre of the members of the Royal House of the Umayyads, and Saffah ascended the throne 132/750. After the revolution had become an accomplished fact, the Shi‘ites who disillusioned and sadly disappointed, were under the impression that a member of the House of ‘Ali would be enthroned.
The treacherous murder of Abu Muslim (138/755) further convinced the Shi‘ites, if such conviction was needed, that their ‘Abbasid cousins were no less hostile to them and their claim than the Umayyads and it was during this period of bitter frustration, disappointment, and stark disillusionment that the term “Shi‘ah” was invested with its basic political and religious connotations.
The Shi‘ites claimed that the House of ‘Abbas had usurped the Caliphate as the Umayyads and the three Orthodox Caliphs had done. They contended that, although de facto sovereignty vested in the ‘Abbasids, legal sovereignty remained with the descendants of ‘Ali who were divinely ordained to be the temporal and religious leaders of the Islamic peoples.