Glaze-paints, technological knowledge, and ceramic specialization in the fourteenth-century Pueblo Southwest

The advent of glaze-painted ceramics by Ancestral Pueblo peoples in the US Southwest occurred during an important period of cultural change. In east-central Arizona, potters used glaze-paints to decorate a striking, representational-style pottery during the early fourteenth-century AD. We evaluate the possibility that these vessels were manufactured by emergent specialists who possessed crafting-knowledge that was not widely shared with others in their communities. Time of flight-laser ablation-inductively coupled plasma-mass spectrometry (TOF-LA-ICP-MS) was used to characterize the composition of a large sample of red ware sherds from sites in the Silver Creek area. This analytical approach precisely measures the chemical composition of paints, which can then be used to model ancient technological “recipes.” Our study highlights the complexities of craft production in small-scale societies and the utility of practice-based versus typological approaches to specialization.