My last book was about the story behind the Shi'a-Sunni split, and for that, I'd worked closely with the earliest Islamic histories, so I knew the events to which the Koran constantly refers, its frame of reference.
Min sidste bog handlede om, historien bag shi'a-sunni splittet, og da havde jeg arbejdet med de tidligste islamiske historier, så jeg kendte begivenhederne, Koranen konstant refererer til, dens referenceramme.