Dr Zulfikar Hirji
Professor Azim Nanji
This is an edited version of an article that was originally published in The Encyclopaedia Iranica, Columbia University, New York, Vol. XIV, pp. 208-210.
The Ismailis consist of two main branches – the Nizari Ismailis and the Musta‘lian Tayyibi Ismailis. Both have their roots in the Fatimid period of Ismaili history