The Paper Trail explores how the new substance was used to solidify social and political systems that influenced China even into our own time. We see how paper made possible the spread of the then new religions of Buddhism and Manichaeism into Japan, Korea and Vietnam . . . how it enabled theologians, scientists and artists to build the vast and signally intellectual empire of the Abbasid Caliphate and embed the Koran in popular culture . . . how paper was carried along the Silk Road by merchants and missionaries, finally reaching Europe in the late thirteenth century . . . and how, once established in Europe, along with the printing press, paper played an essential role in the three great foundations of Western modernity: the Renaissance, the Reformation and the Scientific Revolution.