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The use of microwear analysis has made substantial contributions to the study of archaeological bodily ornaments. However, limitations persist with regard to the interpretation of use and the reconstruction of systems of attachment, hampering a holistic understanding of the diversity of past bodily adornment. This is because the complexities of ornament biographies and the resulting wear traces cannot be grasped exclusively from the study of experimental reference collections. In this paper, we propose to bridge this gap in interpretation by systematically researching ethnographic collections. We conducted a microscopic study of 38 composite ornaments from lowland South America housed at the Musée du quai Branly (Paris). These objects involve organic, biomineral, and inorganic components, attached through different string configurations. The combined use of optical and 3D digital microscopy at different magnification ranges provided a thorough understanding of wear trace formation, distribution, and characterization. We demonstrate how individual beads develop characteristic use-wear in relation to one another and to the strings. We further challenge common assumptions made in the analysis of archaeological ornaments. In sum, this research addresses methodological and interpretative issues in the study of bodily adornment at large, by providing insight into the biographies of objects that were actually worn in a lived context. In the future, our results can be applied as reference for a more effective understanding of the use of ornaments worldwide.

This paper examines aspects of the agricultural activities and network supported by ‘Canaanean’ blade segments from Ninevite V sites located principally in Syria and Iraq. Technological and functional analyses of an extensive sample of these tools, alongside experimental and ethnoarchaeological reference data, point to their use as instruments for working cereals, but not a harvesting tool (sickle) as is usually assumed. Our analyses indicate that these blades were standardised inserts used in a special raft-like threshing sledge as described in contemporary cuneiform texts. The functional study was enlarged to include an extensive experimental program that studied harvesting and other agricultural tools. In particular, we analysed all effects of the functioning of reconstructed threshing rafts, armed with reproductions of Canaanean blade segments. Microscopic silica phytolith ‘sheets’ from cereal stems, extracted from soil samples taken from structures in various sites, indicated that straw chopped with the instrument was used in large quantities as mudbrick temper, fuel and animal fodder. Experimental studies carried out on blades to examine indicators of the knapping method revealed traces of a special manufacturing technique—pressure debitage with a lever and a copper-tipped point, which was identified on standardised Canaanean blades in the northern Mesopotamian sites studied. Our findings suggest that these Canaanean blade segments were produced in northern Mesopotamian workshops and then distributed over the region to equip threshing sledges. This lends support to hypotheses that local centres controlled extensive networks of village sites in the Ninevite V period, and were devoted to the large-scale production, storage and redistribution of agricultural products, possibly in exchange for items such as the specially produced threshing sledge blades.

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China is a major centre for rice domestication, where starch grain analysis has been widely applied to archaeological grinding tools to gain information about plant use by ancient Chinese societies. However, few rice starch grains have been identified to date. To understand this apparent scarcity of starch grains from rice, dry‐ and wet‐grinding experiments with stone tools were carried out on four types of cereals: rice (Oryza sativa L.), foxtail millet (Setaria italica), Job's tears (Coix lacryma‐jobi L.) and barley (Hordeum vulgare L.). The results reveal that dry‐grinding produces significant damage to starches to the point where they may be undetected in archaeological samples, while wet‐grinding causes only slight morphological changes to the starch grains. Moreover, rice starch grains have the most substantial alterations from dry‐grinding, possibly impeding their identification. These findings provide a possible means to explain the relative scarcity of rice starch grains recovered from archaeological grinding tools, which it is suggested was caused by the use of the dry‐grinding technique. Therefore, it is suggested that rice starch grains have been likely underrepresented in the archaeological record, and previous interpretations of starch analyses need to be reconsidered.

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In the central plain of China, grinding tools are a common category of artefacts at sites attributed to the Peiligang Culture (c. 9000-7000 BP). This paper focuses on the grinding tool assemblage from the site of Tanghu, the largest Peiligang Culture settlement yet discovered. The results from the microwear and residue analyses both suggest that cereals were the primary plant material processed with the grinding tools. Other plants, including acorns and underground storage organs, were also processed, but probably to a smaller extent. Furthermore, microwear analysis suggests that the dry-grinding technique was adopted for cereal processing, and a piece of hide or animal skin was placed underneath the grinding slabs to gather the processed plant material. Apart from plant food processing, one of the grinding tools was also involved in processing bone. These data put more insights into the Neolithic culinary practices and different uses of grinding tools in this region.