Crossing the line: Multi-layer analysis and the identification of different borderlines

This paper introduces a volume that brings together specialists in lithic studies to explore how this proxy can reveal different spatial patterns across a large European territory. It examines how diverse behaviours in various environmental and geographical areas can enhance our understanding of social processes during European neolithisation. Initially, we investigate the concept of borders and borderlines, proposing models based on the space considered as a border, the presence of sought-after resources within this space, the agents present, and the nature of interactions between these agents. Subsequently, we discuss the potential of lithic analysis for identifying social groups and different types of borders. Neolithic cultural entities have primarily been defined through typo-stylistic analysis of pottery, while lithics are underutilised in this context. Lithics, however, offer a valuable proxy for understanding the spatial distribution of these entities. Petrographic studies now allow us to precisely define lithic sources, and all actions carried out on these raw materials are readable. Lithics thus enable the tracking of raw material origins and the movement of these materials within a given area. Establishing these circulation networks is crucial for understanding the spaces occupied by prehistoric people and the nature of their interactions. This approach allows us to map and compare spatial groupings based on consumer and producer perspectives. We argue for the necessity of multi-proxy studies and modelling to gain new insights into spatial grouping patterns and their evolution, particularly by considering borderlines at the scale of social groups.