Populations and Climatic Evolution in North Tropical Africa from the End of the Neolithic to the Dawn of the Modern Era

At the end of the Neolithic Era, during the third millennium BCE, there were fewer humid periods, and the sub-Saharan and Sahelian zones from the Atlantic to Lake Chad assumed their current geographical form. Since then, the climate has continued undergoing major variations. The succession of climatic episodes, humid or dry, is pointed out along with the episodes’ complex interactions. These variations are placed in parallel to cultural phases of evolution in archaeology and history. Climate-related events have always had heavy consequences on the peopling of this vast region, often subject to extreme natural conditions. The relative synchronism between the principal cultural trends from west to east across the Sahel seems to have often been subject to swings in the climate and the resulting environmental changes.     

Caracol,Belize, and Changing Perceptions of Ancient Maya Society

Archaeological research at Caracol, an ancient Maya site that was rediscovered in 1937, has become a major resource in the interpretation and understanding of the ancient Maya. Caracol, in west-central Belize, is situated in a subtropical region once characterized as being unsuitable for the development or maintenance of complex societies, yet it is one of the largest, if not the largest Classic period Maya site in the southern Maya Lowlands, home to over 100,000 people at its height between AD 600 and 700. The investigations at Caracol underscore the utility of long-term archaeological projects incorporating large-scale settlement study that combine excavation with varied research designs and the use of a contextual approach. By employing Maya epigraphic history, traditional archaeology, and modern technology like LiDAR, research at Caracol details the rise, maintenance, and fall of an ancient Maya city, affording a large window into ancient Maya lifeways. Archaeological work provides evidence of sustainable agriculture, a market economy, city planning that included a road system, the impact of warfare on the site’s inhabitants, the sociopolitical status of women, the role that archaeology can play in refining written history, and the significance of commemorating the cyclical passage of time to the ancient Maya. This article summarizes archaeological research efforts at the site by the Caracol Archaeological Project over the last three decades.     

Functionality and Morphology: Identifying <Emphasis Type="Italic">Si</Emphasis> Agricultural Tools from Among Hemudu Scapular Implements in Eastern China

Most Chinese archaeologists assume that the scapular implements used in the Hemudu culture in eastern China (7000–5000 BP) were the si agricultural implements (tools for breaking ground and turning soils over to assist in seeding) recorded in ancient Chinese literatures and, accordingly, assume the Hemudu culture was a farming society. However, ethnographic and historical literatures worldwide have suggested inconclusive functions for similar implements. We conducted a range of experiments under realistic conditions, including hide and plant processing and earth-working, followed by use-wear analysis, to identify the functions of the Hemudu scapular implements. The results suggest that no more than half of the implements were employed as si and that their penetrability and durability were rather limited. These findings help explain why Hemudu should not be labeled as a farming society. Through experimentation and use-wear analysis, we produced relatively large datasets that make a significant contribution to the identification of soil-derived wear patterns on bone tools. We also included quantitative measurements of soil properties to ensure similarities in use contexts between our experimental and archaeological analogies in order to reach reliable functional identifications. Our approaches and results, therefore, provided a solid base for re-evaluating previous research as well as building a standardized database of scientific value for future evaluation and adjustment, even if that future research is done in isolation and in different soil contexts.     

Computational Reproducibility in Archaeological Research: Basic Principles and a Case Study of Their Implementation

The use of computers and complex software is pervasive in archaeology, yet their role in the analytical pipeline is rarely exposed for other researchers to inspect or reuse. This limits the progress of archaeology because researchers cannot easily reproduce each other’s work to verify or extend it. Four general principles of reproducible research that have emerged in other fields are presented. An archaeological case study is described that shows how each principle can be implemented using freely available software. The costs and benefits of implementing reproducible research are assessed. The primary benefit, of sharing data in particular, is increased impact via an increased number of citations. The primary cost is the additional time required to enhance reproducibility, although the exact amount is difficult to quantify.     

Towards an Archaeology of Disentanglement

The impact of connectivity in past societies has long been a focus of archaeological studies. Well-established approaches have been developed over the years to understand emergent connections and entanglement between distant communities, including world system, culture contact, post-colonial theories and network analyses. Our understanding of connectivity remains partial, however, because researchers have focussed on the establishment and consequences of contact and largely ignored the dynamics that often led to its interruption. Yet these processes of ‘disentanglement’ are just as complex and far-reaching as their converse and need to be understood in their own right. This paper shows that a thorough analysis of disentanglement processes can contribute to our understanding of the very nature of the interrupted contacts, as well as shed light on the social dynamics that engender long-term changes in contact patterns. The concept of disentanglement is discussed in the light of current theories of connectivity and explored through regional case studies in Late Bronze Age Italy (Salento) and Greece (Achaea).     

Mississippian Plazas,Performances, and Portable Histories

Although plazas have a lengthy and variable history in southeastern North America, by the Mississippian period (ca. 1000–1500 CE), they had assumed some degree of conformity: they were square to rectangular in shape, anchored the approximate center of a settlement, often had additional inclusions such as public buildings or earthen monuments, and were the arenas of secular and religious public activities. We suggest that the importance of these architectural features to Mississippian life ways can be attributed to two characteristics that are widely shared with other cultures that also employed plazas as a form of axis mundi. First, their construction represents an event that arrests temporality and draws attention to their pivotal role in synchronizing ritual life. Second, their relatively open architecture confers them a relational flexibility that allows for the linkage of a wide variety of spaces, things, and beings. A quantitative and qualitative study of 35 Mississippian plazas demonstrates discrepancies from a linear relationship between plaza size and site size that may be related to variation in the kinds of performances that were conducted in these public places at different types of settlements. Despite this variation, the ubiquity of plazas suggests that they were pivotal to the founding of Mississippian places, and may have been important for reestablishing a sense of cosmological order for migrating communities.     

No Compensation Needed: On Archaeology and the Archaeological

The archaeological is regularly perceived in negative terms as lacking and deficient. It is fragmented, static, and crude, a residue of past living societies. Accordingly, much of archaeologists’ efforts are directed toward the amendment of these flaws. The present paper, however, argues that these so-called deficiencies are in fact constitutive absences. Whatever the archaeological lacks, it lacks by definition. It thus follows that working to render the archaeological “complete” is in fact an effort to undo it, to convert it into something else. For the sake of discovering the past, archaeological practice is a sustained effort to rid itself of the very phenomenon that defines it, consequently setting in motion self-perpetuating circularity predicated on deficiency and compensation. The reason for this, it is suggested, is the otherness of the archaeological, being at one and the same time a cultural phenomenon and a fossil record, a social construct and a geological deposit. This condition is so baffling that it is approached by transforming it into something familiar. The paper argues that understanding the archaeological should be archaeology’s first priority. Insofar as it is also the study of the past, this should be predicated on the understanding of the archaeological present.