During recent years a new consensus of opinion seems to have grown up concerning the career of the eighteenth-century antiquary William Stukeley: that his ideas underwent no significant alteration in the course of his adult life, and that Stuart Piggott's famous characterization of Stukeley — that he changed from an objective field archaeologist into a religious crank — was completely wrong. While there is much to commend this revisionist approach, it also presents certain difficulties. It fails to account for the apparent speed and drama of Stukeley's decision to seek ordination as an Anglican minister, or for pronounced differences in emphasis and tone between his earlier and later writings, and it fails to address some important textual difficulties in the dating and interpretation of his manuscript works. This paper is intended to address those problems. It examines the changes in his religious attitudes, and their implications for his scholarship, over the six decades in which he carried out antiquarian researches. In the process, it is intended to make a contribution to the cultural history of the eighteenth century, and also to the early story of the discipline of archaeology.