For archaeology to survive in the present and for critical discourse on the past to thrive, archaeologists must advocate for the discipline's continued relevancy. In this Debate article, the authors illustrate the potential and challenges of such advocacy by examining contemporary perceptions of the Roman period Hadrian's Wall and how it relates to modern border landscapes—namely the US/Mexico border. They argue that archaeologists have not addressed the imagined continuity of socio-political narratives surrounding borderlands, calling for wider recognition of border materiality. The authors contend that the uncritical portrayal of the past, particularly in politically charged spaces such as border zones, can contribute to inequality and oppression in the present.

This article revisits archival excavation records of the Roman garrison at Bu Njem. Past research on the archaeology of Bu Njem often considered the site in isolation from its extramural settlement and from the content of its ostraca, focusing on the morphology of the fort, and the composition of the garrison: this offers the opportunity to study the garrison as an extended military community in its interconnected social, cultural and economic settings. Since the completion of fieldwork led by Rebuffat between 1967 and 1980, there have been significant advances to the research on the Garamantes, the understanding of trade in the Sahara and the nature of Rome's North African frontiers. These advances allow for a rethinking of the interpretation of the evidence from Bu Njem. This article focuses on the archaeology of the military base and the extramural settlement. Building on existing research, the results add to interpretations of the activities in the garrison, recognise the urban character of the garrison settlement, and in doing so, improve our understanding of social and economic activities on the frontier.

Recent research undertaken as part of the Iliturgi Project has located the remains of an Early Imperial building complex linked to the Via Augusta. They include the foundations of an arch and a monumental platform whose size and characteristics allow it to be identified as the Ianus Augustus, a monumental complex near the River Baetis that marked the limit between the Roman provinces of Baetica and Tarraconensis. Its location makes it a reference point for our knowledge of the ancient geography of Hispania and for understanding Roman interprovincial frontiers. Geophysical prospections in its surroundings have also revealed the possible remains of a bridge across the river.

In the summer of a.d. 122, Hadrian (a.d. 117–38) visited Britain as part of his first major journey. It is broadly accepted that the construction of Hadrian's Wall was inaugurated on this occasion. Following recent advances in Upper Germany where the limes palisade is now known to have been under construction when Hadrian visited the province, this paper re-examines the various strands of evidence for the early chronology of the Wall. It is argued that work started well before a.d. 122 and that it was in fact the ‘fort decision’ which resulted from the imperial visit. The revised sequence offers a fresh perspective on several classic Wall problems and prepares the ground for a new understanding of unique features like the milecastles and Vallum.