Before the caliphate of the ʿUthmān ibn ʿAffān, the Muslim community had grown from strength to strength in spite of a series of major crises--the Hirah, the death of the Prophet, the Riddah wars, the assassination of 'Umar by a Persian slave. But ʿUthmān's reign ended in catastrophe. His inability to manage the social and political conflicts that were now emerging among various factions within the community led to his...