This book compares community definition and change in the temperate zones of southern Britain and northern France with the starkly contrasting regions of the Spanish meseta and Iceland. Local communities were fundamental to human societies in the pre-industrial world; crucial in supporting their members and regulating their relationships, as well as in wider society. While geographical and biological work on territoriality is very good, existing archaeological literature is rarely time-specific and lacks wider social context; most of its premises are too simple for the interdependencies of the early medieval world. Historical work, by contrast, has a weak sense of territory and no sense of scale; like much archaeological work, there is confusion about distinctions - and relationships - between kin groups, neighbourhood groups, collections of tenants and small polities.