Mitochondrial DNA diversity in a Transbaikalian Xiongnu population

Xiongnu was a confederation of nomadic pastoral tribes (~200 bc–100 ad) that founded the first nomadic empire in Central Asia. According to archeological and historical data, the tribes played a key role in ethnic and cultural processes in Central Asia and adjacent regions of Eurasia. Genetic studies of the Xiongnu published to date have focused on remains from burial grounds in present-day Mongolia, in the southern part of the ancient Xiongnu area. However, paleoanthropological materials from numerous Xiongnu cemeteries and settlements in Transbaikalia (the southern region of Eastern Siberia, Russia) in the northern part of the Xiongnu Empire have not been examined genetically. Here, we analyzed mitochondrial DNA variation in a Transbaikalian Xiongnu population based on ancient DNA obtained from skeletal remains (n = 18) at four burial grounds to complement available Xiongnu genetic diversity data. We detected 16 mitochondrial DNA haplotypes belonging to seven East Eurasian haplogroups (A, B5, C, D4, G2a, N9a, and Y) in the Transbaikalian Xiongnu series. We observed substantial similarity between Transbaikalian and Mongolian Xiongnu series with respect to main haplogroup composition and frequencies. We observed several mitochondrial DNA clusters (N9a, Y, B5, and A16) and 11 of 16 haplotypes that were previously undetected in the Xiongnu gene pool. We also observed high similarity between the Xiongnu and contemporary indigenous populations of eastern Central Asia, particularly Mongolian-speaking groups. These findings extend our knowledge of Xiongnu genetic diversity.     

The periphery revisited: Polish post-war historiography on the working class and the new global labour history

This paper explores the characteristics of post-war Polish historiography on the working class and relates it to current trends in global labour history. Although, in Poland, labour history never existed as a separate field, many historians focused their studies on either working-class history or the history of the workers’ movement. After 1945, Polish historiography was circumscribed by political and ideological considerations; however – except during the brief Stalinist period (1951–56) – Marxist methodology was not imposed or applied uncritically. In fact, discussions about the role of the working class in history that began after 1956 generated research interest in new groups of workers and labour relations. Much of this research concerns recently highlighted aspects of labour history, such as marginal groups of workers or free versus unfree labour. Polish historians’ reinterpretation of Marxist orthodoxy proceeded from their empirical studies of nineteenth-century Polish lands – at the periphery of Western capitalist development – as well as from their theoretical influences. This article argues that some aspects of the Polish historiography on the working class qualify it as part of labour history’s heritage, despite the historiography’s significant limitations.     

Human Activities and Site Formation at Modern Lake Margin Foraging Camps in Kenya

Interpretation of archaeological sites with predominantly freshwater fish and reptile remains has been impeded by lack of documentation of how humans process such vertebrates, of bone modifications resulting from such handling, and of physical characteristics of sites produced by these activities. We report on 19 contemporary foraging camps on the shore of Lake Turkana, Kenya, with the creation, abandonment, and resulting faunal assemblages of 7 of these more closely described. Variable processing activities created a range of site structures but cross-assemblage regularities in patterns of bone surface modification and element frequencies are perceptible. Most sites were very large, with special-purpose activity areas peripheral to the main residential area. Site structure and size depended mainly on specific subsistence activities carried out and features of the camp locale rather than upon the number of occupants or duration of occupation. Sites can be classified as base camps or as fish production camps, with consistent differences in site structure and bone assemblage characteristics.     

Damage assessment and conservation strategy for the largest covered market in Europe: the Ribera Market (Bilbao)

Facing a scarcity of land for urban development and demand for public services, the Municipal Council of Bilbao recognizes the need to make good use of its built heritage and to upgrade it, while maintaining its cultural and functional features. A good example is the case of the Ribera Market, the largest covered market in Europe. Deterioration of the market building and public pressure for improved services has led to proposals for its rehabilitation. To do so, the constructive condition of the building must first of all be assessed and, then, the most appropriate and compatible intervention technique must be selected. Today, there is a broad selection of intervention technologies, for the improvement of both mechanical behaviour and durability. However, in this article, it is demonstrated that these technologies are not always applicable in old buildings, because they depend on the severity of the pathology and the intrinsic characteristics of the building: for example, corrosion due to chloride ions originating from the concrete mass. The lack of knowledge on constructive techniques and the requirements for the application of new technologies complicate the interventions, which in turn further complicates decision-making with regard to the property.     

Estimation of OSL trap parameters by optical “cleaning” — a critical study

The so-called thermal “cleaning” applied in thermoluminescence analysis allows distinguishing TL signal originating from different traps of comparable thermal depths. Here, the detailed study on the suitability of a similar approach — which can be called optical “cleaning” — for the analysis of OSL process has been carried out by means of computer modelling. The optical “cleaning” is realized by short optical stimulation applied directly after irradiation. It turns out that this approach does not help to separate signals related to various traps having similar optical cross-section (OCS) values. For some sets of trap parameters, sufficiently good reconstruction of the trap optical cross-sections can be achieved by the analysis of the conventional OSL curve obtained directly after sample irradiation, while the OSL curve analysis after “cleaning” does not provide any additional data. For other cases the analysis of both curves with and without “cleaning” leads to optical cross-section values different from those assumed in the model, but just in such situations the optical “cleaning” can be helpful. The differences between the OSL components of the conventional curve and the one obtained after “cleaning” can be used as indicators of an incompatibility of the trap parameters obtained from the OSL analysis with their actual values.     

METALWORKING TECHNIQUES ON THE EURASIAN STEPPES IN THE LATE BRONZE AGE: TECHNICAL ANALYSES OF THE BORODINO TREASURE SPEARHEADS

The Late Bronze Age is a period characterized by chariots and riders, spearheads, bows and battle axes. Such are the assemblages of grave goods attributed to the Seima‐Turbino, Timber‐grave, Abashevo, Sintashta, Pokrovsk and other cultures of the Eurasian forest‐steppe and steppe belt. Although hoard deposits are comparatively rare in this context, this category of finds has also provided some extraordinary examples of metalwork. This paper reports on the analysis of three such artefacts, namely the gold‐ornamented silver‐alloy spearheads from the ‘treasure’ recovered near Borodino in Ukraine at the beginning of the twentieth century. The high‐ resolution technological study of these items presented here includes experimental research to produce similar decorative patterns and a comparison of the resulting traces and imprints with the original archaeological artefacts. The results help to identify use‐wear traces and reveal new information about casting and crafting techniques, tool sets and individual technical styles. Although the spearheads share some basic decorative features such as a gold plate attached to the silver, variations in the tools used and the technical repertoire – chasing, punching, and cutting – suggest that the spearheads were decorated by different hands. The study inevitably leaves many questions about the ‘life history’ for these objects unanswered, but takes the first steps towards a more complete understanding of this remarkable assemblage.