Of all the great world religions, Islam appears to have the most powerful political appeal in the twentieth century. It sustains some severely traditional and conservative regimes, but it is also capable of generating intense revolutionary ardour and of blending with extreme social radicalism. As an agent of political mobilisation, it seems to be overtaking Marxism, arid surpassing all other religions. The present book seeks the roots of this situation in the past. The traditional Muslim society of the arid zone has, in the past, displayed remarkable stability and homogeneity, despite great political fragmentation, and the absence of a centralised religious hierarchy. The book explores the mechanisms which have contributed to this result - a civilisation in which (in the main) weak states co-existed with a strong culture, which had a powerful hold over the populations under its sway. A literate Great Tradition, in the keeping of urban scholars, lived side by side with a more emotive, e
