Evangelicals have long believed that evangelicalism is straightforwardly constituted by its shared doctrinal consensus. Nineteenth century evangelical activism, by virtue of its reliance on a distinctly modern social theory, belies this account. Joel From believes that in keeping with their eighteenth century intellectual predecessors, nineteenth century evangelical activists invoked a Newtonian account of their activities and social context. This implicit conception accounts for the trajectory of nineteenth century evangelical organizations and their pioneering role in social modernization. Mr. From is professor of general education at Briercrest Bible College.