THE REMARKABLE quality of this transformation is partly shown by the fact that there was no such thing as Hinduism before the British invented the holdall category in the early nineteenth century, and made India seem the home of a "world religion" as organised and theologically coherent as Christianity and Islam. The concepts of a "world religion" and "religion" as we know them now, emerged during the late 18th and early 19th century, as objects of academic study, at a time of widespread secularisation in western Europe. The idea, as inspired by the Enlightenment, was to study religion as a set of beliefs, and to open it up to rational enquiry.