Although the Caliphate was formally abolished ninety years ago, it had already ceased to exist as a unitary and effectively administered political institution many centuries earlier. The ever widening gap between political ideal and historical reality is also reflected in the varying conceptualizations and theories of the Caliphate developed by Islamic religious scholars and Muslim intellectuals past and present. However, recent events in the Islamic world show that the idea of a Caliphate still appeals to Muslims of varying persuasions.