Derrida first received major attention outside France with his lecture, "Structure, Sign, and Play in the Discourse of the Human Sciences," delivered at Johns Hopkins University in 1966 (and subsequently included in "Writing and Difference"). The conference at which this paper was delivered was concerned with structuralism, then at the peak of its influence in France, but only beginning to gain attention in the United States. Derrida differed from other participants by his lack of explicit commitment to structuralism, having already been critical of the movement. He praised the accomplishments of structuralism but also maintained reservations about its internal limitations; this has led US academics to label his thought as a form of post-structuralism.