Stratigraphic data form the backbone of archaeological records from excavated sites and are essential for the integrated analysis and wider interpretation of artefacts and sites. Accessible archiving of this data is therefore vital for understanding and revisiting such interpretations. Here, the authors highlight the need for more consistent digital records of stratigraphic and associated temporal relationships derived during post-excavation analysis phasing activities. They argue for the distillation of best practice in post-excavation procedures and the application of consistent and persistent terminology to make this fundamental archaeological data sustainably FAIR (findable, accessible, interoperable and reusable) and ‘Open’ across present-day geopolitical and spatiotemporal boundaries.

The widespread significance of tobacco in Mesoamerica is documented in historical and ethnographic sources, yet recovery of the organic remains of this plant from archaeological contexts is rare. Here, the authors present evidence for the ritual use of tobacco at Cotzumalhuapa, Guatemala, during the Late Classic period (AD 650–950). Detection of nicotine in residue analysis of three cylindrical ceramic vases recovered from cache deposits near the El Baúl acropolis suggests that these vessels contained tobacco infusions or other liquid preparations. These results suggest an ancient ritual practice involving tobacco for which there was previously no physical evidence in Mesoamerica.

Recent archaeological research in the Andes suggests that Indigenous herders carefully managed their environments through the modification of local hydrology and vegetation. However, the limited geographical scale of previous research makes it challenging to assess the range and prevalence of pastoralist land management in the Andes. In this article, the authors utilise large-scale, systematic imagery survey to examine the distribution and environmental contexts of corrals and pastoralist settlements in Huancavelica, Peru. Results indicate that corrals and pastoralist settlements cluster around colonial and present-day settlements and that a statistically significant relationship exists between pastoral infrastructure and perennial vegetation. This highlights the utility of remote survey for the identification of trans-regional patterns in herder-environment relationships that are otherwise difficult to detect.

The American sweet potato (Ipomoea batatas) is a globally important comestible crop that features prominently in Polynesian lore; however, the timing and mode of its Oceanic transplantation remain obscure. New research from the Māori cultivation site M24/11 in Aotearoa/New Zealand, presented here, offers a re-evaluation of evidence for the early use and distribution of the sweet potato in southern Polynesia. Consideration of plant microparticles from fourteenth-century archaeological contexts at the site indicates local cultivation of sweet potato, taro and yam. Of these, only sweet potato persisted through a post-1650 climatic downturn it seems, underscoring the enduring southern-Polynesian appeal of this hardy crop.

Modern and contemporary archaeology, the French equivalent of historical archaeology, emerged in the 1970s. Subsequent attempts at theorising this sub-discipline have been hindered by a lack of broad professional recognition and funding. While the archaeology of the sixteenth to eighteenth centuries is now more widely recognised in France, studies of the post-nineteenth-century period remain limited to a few specific contexts. Here, the author offers an overview for the Anglophone readers of modern and contemporary archaeology in France and argues that greater theorisation, cross-fertilisation with other archaeological traditions and a diversification of the range of themes considered might enhance recognition of this sub-discipline within and beyond France.

Calls for the restitution and repatriation of cultural objects continue to escalate. High-profile cases such as the Parthenon Frieze and the Benin Bronzes dominate international news cycles and provoke fierce debate; however, less attention has been paid to items that are quietly returned and to the potential positive outcomes for the institutions on both sides. This article discusses three Southeast Asian case studies to address this lacuna and urges institutions to become more proactive in their engagement with restitution and repatriation claims.

The activities of metal-detectorists and other finders and collectors of archaeological objects are increasingly of interest for researchers in archaeology and related disciplines. In this methods article, the authors introduce semi-structured archaeological object interviews—inspired by the object interview in sociology—as a means of observing the meanings and biographies that finder-collectors create for, and with, the objects in their stewardship. The challenges and opportunities for researchers using this method are explored and the authors offer reflections from in-the-field experiences with finder-collectors in Flanders, Finland and Norway.

Recent research has considered the relationship between Stonehenge and sites in south-west Wales, raising questions about whether the first monument at Stonehenge copied the form of an earlier stone circle at Waun Mawn and how the relationship between these sites was connected with the transport of bluestones between the different regions. But Stonehenge and Waun Mawn are not the only prehistoric sites in Britain and Ireland that share architectural elements and hint at social connections across vast distances of land and sea. This debate article explains how the questions raised about these Late Neolithic monuments can and should be applied to other monumental complexes to explore this insular phenomenon.

Archaeological surveys conducted through the inspection of high-resolution satellite imagery promise to transform how archaeologists conduct large-scale regional and supra-regional research. However, conducting manual surveys of satellite imagery is labour- and time-intensive, and low target prevalence substantially increases the likelihood of miss-errors (false negatives). In this article, the authors compare the results of an imagery survey conducted using artificial intelligence computer vision techniques (Convolutional Neural Networks) to a survey conducted manually by a team of experts through the Geo-PACHA platform (for further details of the project, see Wernke et al. 2023). Results suggest that future surveys may benefit from a hybrid approach—combining manual and automated methods—to conduct an AI-assisted survey and improve data completeness and robustness.

Cultural inheritance is a central issue in archaeology. If variation were not inherited, cultures could not evolve. Some archaeologists have dismissed cultural evolutionary theory in general, and the significance of inheritance specifically, substituting instead a view of culture change that results from agency and intentionality amid a range of options in terms of social identity, cultural values and behaviours. This emphasis projects the modern academic imagination onto the past. Much of the archaeological record, however, is consistent with an intergenerational inheritance process in which cultural traditions were the defining characteristics of behaviour.