The Hashimiyah movement, also called Rawandiyah, had…
718 CE
The Hashimiyah movement, also called Rawandiyah, had appeared in the Iraqi city of Kufah in the early 700s among the Shi'ites, who believe that succession to 'Ali's position of imam, or leader, of the Muslim community had devolved on Muhammad ibn al-Hanafiyah (d. c. 700), one of his sons, and Abu Hashim, a grandson.
The Hashimiyah thus do not recognize, for religious reasons, the legitimacy of Umayyad rule, and when Abu Hashim died in 716, without heirs, a majority of the sect had acknowledged Muhammad ibn 'Ali (died between 731 and 743) of the 'Abbasid family as imam.
Among Sunnites, imam is synonymous with caliph (khalifah), designating the successor of Muhammad, who assumes his administrative and political, but not religious, functions.
In Shi'ite Islam, 'Ali and the successive imams, who are believed by Shi'ism to be the sole possessors of secret insights into the Qur'an given them by Muhammad, have become figures of absolute spiritual authority and fundamental importance.
The 'Abbasid name is derived from that of the uncle of the Prophet Muhammad, al-'Abbas (died c. 653), of the Hashimite clan of the Quraysh tribe in Mecca.
Members of his family work from about 718 to gain control of the empire.