Kings, aristocrats, peasants, and the Church are among the shared features of most early medieval societies. However, these also varied dramatically in time and space. Can petty regional kings, for instance, be compared to those in charge of a whole empire? Scale is a crucial factor in modelling, explaining, and conceptualizing the past. Furthermore, many issues that historians and archaeologists treat independently can be theorized together as processes of scale decrease or increase: the appearance of complex societies, the rise and collapse of empires,...