Julie Brumberg-Chaumont, Research Professor - Centre National de la Recherche Scientifique (PSL/CNRS)Claude Rosental, Research Professor - Sociology, Centre National de la Recherche Scientifique (CNRS)

• Introduction.- Part I. “Primitives” and Civilized Men.- Decolonizing “Natural Logic”.- Natural Logic, Anthropological Antilogies, and Savage Thought in the 19th Century.- Referring to Logical Skills to Assess the Rationality of an Ethnic Group: The Zande Case in the History of the Social Sciences.- “Some Stages of Logical Thought”: From Native Certainties to Acquired Doubts.- Part II. Educated and Disabled Men.- The Rise of Logical Skills and the 13th Century Origins of the “Logical Man”.- Anti-dialecticians in the Middle Ages: Historiographic Myth or Reality?.- Illogical Thinking: Problems Concerning Medieval Notions of “Idiocy” and “Rationality”.- Natural Logic and the Course of Time: From Theology to Developmental Psychology.- Index.

“History remains important within postcolonial STS. The Postcolonial Science and Technology Studies Reader (Harding, 2011), for example has numerous contributions by historians … . Logical skills shows that, to better understand the shared insights of postcolonial STS and STS itself, the sociological study of history is a fruitful approach.” (Maria Amuchastegui, Science & Technology Studies, Vol. 35 (3), 2022)