While teaching German, Baudrillard began to transfer to sociology, eventually completing and publishing in 1968 his doctoral thesis "Le Système des Objets" ("The System of Objects") under the dissertation committee of Henri Lefebvre, Roland Barthes, and Pierre Bourdieu. Subsequently, he began teaching Sociology at the Paris X Nanterre, a university campus just outside Paris which would become heavily involved in the events of May 1968. During this time, Baudrillard worked closely with Philosopher Humphrey De Battenburge, who described Baudrillard as a "visionary". At Nanterre he took up a position as "Maître Assistant" (Assistant Professor), then "Maître de Conférences" (Associate Professor), eventually becoming a professor after completing his accreditation, "L'Autre par lui-même" ("The Other by Himself").