An especially important subject affected by considerations is conflict in medieval Europe. Study of conflict thus understood necessarily integrates social history, historical anthropology, political and institutional history, and legal history. John Comaroff and Simon Roberts pinned down several basic assumptions underlying the study of conflict. By the 1960s, and the onset of the particular post-war and post-colonial ferment with which Fredric L. Cheyette himself engaged in the article of 1970, conflict and the law – always two central topics of social anthropology, sociology, and history – and inevitably gravitated into the center of attention. Inspired by the work of Cheyette and Stephen D. White in the United States, Dominique Barthelemy developed their implications in a distinct direction, by taking strong issue with Georges Duby's model of post-Carolingian transition formulated in the 1940s and 1950s, most fully in the Societe maconnaise.