Over the course of the nineteenth century, transatlantic intellectuals slowly revised theological anthropology, or the doctrine of humanity seen in light of the divine. Gradually, elite discourse deposed humanity from its lofty estate and centering it within a naturalistic account wherein likeness to animal fauna became the central evaluative lens. Durst argues that theological anthropologies across the disciplines increasingly shifted focus away from classic confessional themes such as the soul and the image of God, and toward the methods of natural theology and intuitionism. This occurred in the form of challenges to theology in biology, phrenology, transcendentalism, anti-theology, Christian socialism, intuitionism, and religious experience. The human soul and human sinfulness also found a revised articulation in terms increasingly shaped by the cultural authority of science. An ascendant subjective approach to human nature emerged whereby religious experiences, not theological claims to truth, assumed prominence as the central measures of religious life.