The cultural turn is a movement beginning in the early 1970s among scholars in the humanities and social sciences to make culture the focus of contemporary debates; it also describes a shift in emphasis toward meaning and away from a positivist epistemology. The cultural turn is described in 2005 by Lynette Spillman and Mark D. Jacobs as "one of the most influential trends in the humanities and social sciences in the last generation."[1] A prominent historiographer argues that the cultural turn involved a "wide array of new theoretical impulses coming from fields formerly peripheral to the social sciences,"[2] especially post-structuralism, cultural studies, literary criticism, and various forms of linguistic analysis, which emphasized "the causal and socially constitutive role of cultural processes and systems of signification."[2]