Abstract This article offers the first study of the Cahiers d’Histoire Mondiale , the Journal of World History published under the auspices of UNESCO from 1953 to 1972 as a by-product of the ‘History of mankind’ project. Drawing on material in the UNESCO archives, it delves into what Lucien Febvre, the first editor of the Cahiers , called his ‘kitchen’, in order to understand world history as a practice. Data on author origin and article subject matter point to the journal’s mitigated success in overcoming Eurocentrism. The article ultimately contends that the Cahiers was at once a laboratory that experimented with new forms of relational history, and a forum where the very nature of world history was discussed by scholars from around the world (mainly from the West, but also from the East and the South). It suggests that today’s epistemological discussion on global history might benefit from the reflection offered by this now largely forgotten experiment.