Various authors have claimed over the years that Homo erectus had language. Since there is no direct evidence about the matter, this claim represents the conclusion of a multi-step composite inference drawn from putative non-linguistic attributes of the species. Three maritime behaviours are central among these attributes: crossing open seas to get to insular islands such as Flores in the Indian ocean and Crete in the Mediterranean; building complex watercraft for the crossings; and undertaking navigation in making the crossings. Dubbing it the ‘Seafaring Inference’, the present article reconstructs and appraises the way in which Barham and Everett use the Seafaring Inference to build a case for the claim that Homo erectus had language. This composite inference starts from certain lithic objects found on Flores and ends, via six simple inferences, with the conclusion that Homo erectus had a form of language. The main finding of the article is that this composite inference is flawed in including a simple inference which is unsound and, accordingly, cannot be used to make a strong case for the claim that Homo erectus had language. There is a less well-developed variant of the Seafaring Inference which proceeds from the recovery of lithic objects on Crete. This variant is found to be multiply flawed, there being several simple unsound simple inferences among its components.

This article examines Middle and Late Preclassic period ritual activity and caches discovered in the Central E Group complex at the ancient Maya site of Cival, which is located in northeastern Peten, Guatemala. It focuses on a series of excavations conducted in 2013 and 2014 at Structure 9, the E Group's western radial pyramid and uses theories of social memory and sacred place to provide insight into the recently discovered caches, termination rituals, and the deliberate destruction of architectural features found there. It also draws on previous ritual activity conducted in the Central E Group plaza and the site's broader history to obtain a more comprehensive understanding of the role of this complex as a sacred place and hub of memory at Cival for more than 1,000 years.

This report examines the deposit of a sixteenth-century cache of silver aquillas within a Chachapoya household at the site of Purun Llacta de Soloco. The report examines their context and contents. These findings have implications for a larger examination of social value in Andean societies and the specialized treatment and use of ritual objects during the tumultuous colonial period.

La navegación, la tecnología naval, la vida a bordo y las actividades llevadas a cabo en barcos de época moderna y contemporánea han sido temas ampliamente estudiados dentro de la arqueología marítima y náutica. Sin embargo, el devenir de los náufragos sobrevivientes de accidentes y las correspondientes evidencias materiales en la costa, no fueron abordados en grado semejante. Las investigaciones muestran un desarrollo dispar, destacando los trabajos realizados en el Pacífico occidental. En Latinoamérica, esta problemática se encuentra aún apenas esbozada. El estudio arqueológico de campamentos de náufragos puede aportar información novedosa para conocer las relaciones humanas, interpersonales e intergrupales, en situaciones de crisis. En este artículo, presentamos los primeros resultados del análisis arqueológico-histórico de la materialidad asociada al sitio Faro Segunda Barranca 4, localizado en el Partido de Patagones, Provincia de Buenos Aires, Argentina. A partir de una discusión de las diferentes líneas de evidencia, identificamos los restos como un campamento de náufragos en el marco de la Guerra del Brasil o Guerra de Cisplatina (1825-1828).

This study investigates the effects that an encounter with a foreign object can have on local traditions. Notions of object agency and object biographies will be utilized to address what happens when people become entangled with new things: the new context can have an impact on the newly introduced object, and those newly introduced objects can similarly impact locals and their traditions. The Late Bronze Age southern Levantine site of Tel Burna will serve as a case study, where a number of imported Cypriot pithoi were found alongside locally produced pithoi. It will be demonstrated that in their new context, the Cypriot pithoi were given new meaning and function. At the same time, the imported pithoi played active roles in the local potters of Tel Burna making pithoi. However, the local pithoi resemble local storage jars, so while the potters mimicked the concept of the Cypriot pithoi, they did so according to local normative forms.

Large walling projects are among the most visible features in the archaeological record. However, enclosure walls remain relatively under-theorized relative to other monumental buildings. In an attempt to move beyond simple explanations that analyse walls solely as defensive features or symbols, I link monumental walls to notions of sovereign power and action-oriented theories of value(s). Using examples from Pharaonic Egypt, I argue that monumental enclosure walls were attempts to define and realize particular social totalities, whether these were a temple complex, a royal tomb or an urban centre. If all efforts at border-making are also an exercise in power, walls have the potential to illuminate some of the goals and values of those ordering their construction. By analysing changes and continuities related to which structures required the protection of a monumental enclosure wall over time, it is possible to shed light on the fluid priorities of the most important political actors in Pharaonic society. Yet the very presence of a wall implies potential dissent and alternative practices—otherwise a wall's construction would not have been necessary.

Countering the passive representation of rivers in many previous accounts of later prehistory – as static vessels for spectacular deposits, highways for transport and communication, and backdrops for settlement and farming – this paper asks if and how rivers actively shaped prehistoric lives. Rivers have long been hailed as conduits for prehistoric materials and ideas. However, positive archaeological correlates of the processes involved are notoriously difficult to identify and have rarely been scrutinised in detail. Using the example of Late Bronze and Early Iron Age pottery in the east of England (1150–350 bc), we examine in detail how prehistoric pottery-making traditions cohered around river valleys over an extended time period and were thus, to a certain extent, generated by rivers. Drawing on wider evidence for the flow of people and things in this region we build a broader multi-dimensional account of how people, objects, and practices moved in a period of diverse lifeways in which the makeup of human mobility is not well understood. In doing so, we hope to tether abstract arguments about the active role of rivers and other non-human elements in shaping past lives and to approach the often missing ‘middle ground’ – small-scale movements at local and regional scales – in existing archaeological discussions about mobility.

Reconstructing Pleistocene glaciation timing and extent is vital for understanding paleoclimate. Whereas late Pleistocene glaciation has been studied extensively in western North American mountain ranges, the glacial history of the western Elk Range in Colorado remains understudied, particularly in the East River watershed, a site of intense scientific focus. Here we use cosmogenic nuclide exposure and depth–profile dating methods to determine the timing of glaciation in the East River watershed. We use glacier modeling to reconstruct paleoglacier extents and quantify past climate conditions. Our findings indicate that the East River glacier retreated from its maximum position approximately 17–18 ka, moving to recessional positions between 13 and 15 ka, before experiencing more substantial retreat to high-elevation cirques around 13 ka. Glacier modeling suggests that the maximum ice extents at 17–18 ka could have been sustained by temperature depressions of approximately −6.5°C compared to modern conditions, assuming consistent precipitation. Additionally, the ice position at 13–15 ka could have been supported by temperature depressions of around −4.0°C. These results offer insights into the deglaciation timeline in the East River watershed and broader western Elk Range as well as paleoclimate conditions during the late Pleistocene, which may aid future research on critical zone evolution in the East River watershed.