The twenty-one year rule of Imam Aziz marks the height of the Fatimid rule, with the empire securing regions as far as Yemen, Damascus, and Palestine to the lands bordering on the Atlantic Ocean. Espousing a culture of religious freedom of practice, the resulting peace and prosperity attracted many non-Muslims and foreigners to make their home within the perimeters of the vast empire.

Mowlana Imam Aziz was born on the 14th of Muharram, 344AH (953AD), in Qairwan.

Mowlana Moez became the Imam of the Time at the age of 22 years. Under his leadership, a new capital near Fustat was established and came to be named al-Qahira (present-day Cairo). The great masjid of al-Azhar was also built at this time, and would eventually be extended to a university by the following Imam, Mowlana al-Aziz. This period in Ismaili history marks the lifetime of several well-known Ismaili dai's including Qazi Noman and Abu Yaqoob al-Sijistani (Aziz, 1974).

Imam Moez was born on the 21st of Ramazan, 318AH (930AD) in Mehdia. Tall, handsome, and wellbuilt, he was well-known for his kindness and generosity.

During his seven years of Imamate and Caliphate, Imam Mansoor as the third Fatimid Caliph, encountered many forces which were actively seeking to undermine the security of the Fatimid Empire, most notably the Kharijis, led by Abu-Yezid Khariji and later by his son Fazal, and the Umayyad ruler in Spain. Despite these pressures, the boundaries of the Fatimid territory were maintained and the Ismaili dawa, under the leadership of Pir Abdul Majid bin Pir Ghalibuddin, spread as far as Afghanistan (Aziz, 1974).