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The Atlantic peninsulas of western Europe present intriguing cultural parallels that reach back into later prehistory. Furthermore, direct evidence of interconnections from the fifth millennium BC is revealed by the movement of specific materials such as Iberian variscite. Brittany and Galicia were key nodes within this potential network of maritime interaction, but debate continues as to the routes that were chosen and the navigational abilities involved. Did early seafarers keep close to the coast and did long journeys involve many intermediate landfalls? Or did crews venture direct crossings of the Bay of Biscay? In the absence of surviving evidence for the kinds of vessel likely to have been used by Neolithic seaborne navigators, modern wind and current data are here used to generate models indicating journey times for small sea‐going craft powered only by oars, following the coastal or the direct route. The results are discussed within the context of selected material flows (jadeitite, variscite, copper, Beakers) and against a background of potentially changing maritime technology.  相似文献   
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This paper discusses the relationship between agricultural activity and ritualized/religious practices in England from the middle Bronze Age to the early medieval period (c.1500 BC–AD 1086). It is written in the context of the ERC‐funded, Oxford‐based ‘English Landscapes and Identities project’ (EngLaId), which involved the compilation of an extensive spatial database of archaeological ‘monuments’, finds and other related data to chart change and continuity during this period. Drawing on this database alongside documentary and onomastic evidence, we analyze the changing relationship between fields, ritual and religion in England. We identify four moments of change, around the start of the middle Bronze Age (c.1500 BC), in the late Bronze Age (c.1150 BC), the late Iron Age (c.150 BC) and the middle/late Anglo‐Saxon period (c.800 AD). However, despite changes in both agricultural and ritual/religious practices during this extensive timeframe, a clear link between them can be observed throughout.  相似文献   
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Sixty-one Augustan quadrantes were analysed for calcium, iron, nickel, copper, silver, tin, antimony, and lead by X-ray fluorescence. Most coins contained about 99·7% copper with the other seven elements present as trace impurities. Significant differences in composition were found for the three different issues of quadrantes minted in c. 9 BC indicating that these issues were not minted exactly contemporaneously. Quadrantes minted in c. 4 BC have trace element concentrations in ranges that differ from those of the 9 BC quadrantes. The precision is very good for all trace elements (the precision of calcium was not calculated): average standard deviations are 0·0021% for Fe, 0·0026% for Ni, 0·0038% for Ag, 0·0014% for Sn, 0·0031% for Sb, and 0·015 for Pb.  相似文献   
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