The Basasiri Revolution These are the great Mahdist revolutions, and there are minor revolutions that were nipped in the bud, such as the revolution of Basasiri. He was a Turk who was the leader of the Turks in Baghdad. Al-Qa'im bi-Amr Allah, the Abbasid Caliph, appointed him over all the Turks and entrusted him with all affairs. He was proclaimed on the pulpits of Iraq and Khuzistan, and kings made peace with him. Al-Mustansir Billah al-Fatimi corresponded with him and ordered him to call for the Fatimid doctrine in Iraq. If he did so and abolished the Abbasid Caliphate, he promised to be the governor of the Fatimids over Iraq and to be granted all authority. So Basasiri rose against Al-Qa'im bi-Amr Allah al-Abbasid and proclaimed Al-Mustansir Billah al-Fatimi. He remained in this state until Tughril Beg al-Seljuk arrived, met Basasiri, killed him, and returned Al-Qa'im to Baghdad. This was in the year 450 AH. In any case, the Shiites formed a government alongside the official government from the time of Ali, and they concealed themselves with taqiyya, which is a principle