Casting Identities in Central Seclusion: Aspects of Non-Ferrous Metalworking and Society on Gotland in the Early Medieval Period

Doctoral Thesis in Archaeological Science at Stockholm University, Sweden 2013. The aim of this thesis has been to investigate and interpret late Iron Age and Early Medieval traces of non-ferrous metalworking on the island Gotland, Sweden. Gotland was not, based on the archaeological record, an integrated part of the common Scandinavian culture. Instead a local, endemic cultural expression had developed; a seclusion which lasted for centuries despite the islands central position in the Baltic Sea. In the past, key elements for the understanding of local settlement- and burial practices as well as the local material culture were mainly recovered and reported by local farmers. A specific category of such finds – so-called 'bronze slag' is discussed and partly reinterpreted in the first study of this thesis. Two further studies treat different aspects of metalworking and metalworkers – one discusses common archaeological notions of Scandinavian workshops, production sites and metalworkers from a critical perspective while the other mainly focuses on the Gotlandic finds from metal-detector surveys carried out over the last 35 years. Based on where and to which extent, both from a quantitative and a qualitative point of view, these finds occur a hierarchical classification into four sub groups is presented – ordinary farm sites with traces of non-ferrous metalworking, workshop sites, potential workshop sites and last, extrovert harbour settlements. A fourth study presents an attempt to evaluate the usefulness of magnetometry in delimiting extant traces of high-temperature crafts, such as metalworking. The last study of the thesis presents an attempt to use trace elements analysis of skeletal lead in human bone to identify potential non-ferrous metalworkers. As the wearing of endemic Gotlandic jewellery appears to have been central in the manifestation of the local identity it is argued that the metalworking artisans played a crucial role in defining how this identity was signalled and displayed via the jewellery and dress-related metal objects. It is further suggested that these artisans might have played an important role in upholding the local economy before the advent of local minting.