After a succession of victories, the last Aghlabid emir left the country, and the dā'ī's Kutama troops entered the palace city of Raqqada on 25 March 909. Abu Abdallah established a new, Shi'a regime, on behalf of his absent, and for the moment unnamed, master. He then led his army west to Sijilmasa, whence he led Abdallah in triumph to Raqqada, which he entered on 15 January 910. There Abdallah publicly proclaimed himself as caliph with the regnal name of al-Mahdī.