Pottery politics: Late Classic Maya palace production at Motul de San José, Petén,Guatemala

Archeologists often rely heavily on stone monuments, architecture, settlement patterns, and written texts to reconstruct ancient political systems. In this paper we focus on the role of polychrome pottery as both a reflection of and critical component in the production of power relations. We present rare direct evidence of polychrome pottery production recovered from the Maya site of Motul de San José, the presumed Late Classic (ca. 600–900 AD) capital of the epigraphically-recognized Ik’ polity. Our contextual analysis of production debris and tools complement on-going polychrome vessel style and chemical analyses of Ik’ Style polychrome vessels to suggest that Motul de San José’s royal court was an important center in the manufacture of Ik’ Style polychrome pottery. These elaborate vessels indexed the political history, power, and networks of the Ik’ polity. By combining archeological, iconographic, and epigraphic data of polychrome pottery, we shed light on Motul de San José’s internal political-economic dynamics as well as its macro-political alliances and tensions with other polities.     

Ergosterol (5, 7, 22-ergostatrien-3β-ol) as a potential biomarker for alcohol fermentation in lipid residues from prehistoric pottery

In this paper we explore the potential use of ergosterol (5, 7, 22-ergostatrien-3β-ol) as a possible biomarker for yeast and alcohol fermentation, applying the analytical technique previously used routinely in Swedish archaeology for the analysis of lipid residue in prehistoric pottery. Taking note on the connection between brewing, baking and agriculture the frequency of vessels showing gas chromatography mass spectrometry traces of this compound in lipid residues from a clearly agricultural Bronze Age/Early Iron Age population was compared with the same signal in a clearly non-agricultural Neolithic foragers pottery population. The result shows a small but statistically significant difference between the two populations, indicating a connection between the presence of ergosterol in lipid residues from pottery and agriculture. The results are also discussed in terms of varying cleanliness, degradation, deposition conditions and contamination. Suggestions for future research include the use of a more sensitive analytical protocol in order to improve detection limits and to include materials from clear agricultural Neolithic vessel populations.     

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Diet,social differentiation and cultural change in Roman Britain: new isotopic evidence from Gloucestershire

This study uses stable isotope analyses (δ¹³C and δ¹⁵N) of human bone collagen to reconstruct the diet of three Romano-British (first to early fifth century AD) populations from Gloucestershire in South West England. Gloucestershire was an important part of Roman Britain with two major administrative centres at Gloucester (Glevum) and Cirencester (Corinium) and numerous smaller settlements and farmsteads. To investigate potential dietary differences between the rural and urban populations of Roman Gloucestershire, we compared human bone collagen stable isotope values from 32 individuals from urban Gloucester with those of 46 individuals from two rural cemeteries at Horcott Quarry and Cotswold Community, respectively. Seven individuals from urban Gloucester were buried in a mass grave; all others were buried in single inhumations. Results show small but significant differences in stable isotope ratios between the urban and rural populations which indicate that the urban population might have consumed slightly more marine and/or freshwater resources than the people living in the rural communities. We interpret this difference as a direct reflection of Rome’s influence on Gloucester’s population and the town’s economic status. Subtle differences in stable isotope ratios were also observed at the site level, as burial practice does correlate with diet in some cases. Overall, the results from this study demonstrate that diet, as reconstructed through stable isotope analysis, is a very sensitive, if settlement-specific, indicator of social differentiation and culture change.     

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