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61.
Jonathan Harris 《Journal of Medieval History》1995,21(4)
It is generally thought, largely on the basis of a letter of Cardinal Bessarion, that, by the 1440s, the Byzantine Empire had been completely overtaken by the West in all spheres of technical expertise. This idea is challenged the evidence of some documents the Public Record Office in London which show that, between at least 1441 and 1483, two gold wire drawers from Constantinople, named Andronicus and Alexius Effomatos, lived and worked in the English capital. It is argued that these craftsmen were welcomed because they specialised in making gold thread of a type which had long been manufactured in Byzantium but was superior in strength and economy to that produced in England. Indeed, since the earliest evidence for native English production of this type of gold thread dates from the period of their residence in London, there is at least the possibility that they actually introduced their craft into England, reversing the relative balance of technology as it is usually portrayed. 相似文献
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ABSTRACT. The occurrence of rural retail activity may be related to the concept of threshold, which suggests the direct relationship between surrounding populations and the hierarchical functions provided. Empirid studies have typically examined individual categories of retail firm concentration or multiplication in isolation of the extent of other retail activities. This study develops models of retail business concentration for sparsely populated rural markets, and emphasizes proper statistical treatment of the discrete firm-count data. The analytical approach specifies systems of multivariate count data models that can capture the interdependencies among merent types of retail firms. The degree of interdependence is tested and shown to be a significant statistical feature of the model of rural retail firm counts. 相似文献
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John W. K. Harris 《African Archaeological Review》1983,1(1):3-31
In the time interval between approximately 2.5 million years and 1.5 million years ago and against a background of changing environmental conditions and the emergence of highly diversified populations of early hominids, the earliest archaeological occurrences have been documented from a number of localities in the Rift Valley of East Africa. These have been attributed to the Oldowan Industrial Complex. More recently, broadly comparable archaeological occurrences have been discovered from Hadar and the Middle Awash located in adjacent areas of the Afar, in Ethiopia. This paper summarizes the age, context and characteristics of these occurrences and offers preliminary comments on their contribution to greater understanding of early hominid adaptive patterns of behavior. 相似文献
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Jeremy Black Jason Harris Andrew David John N. Moore 《Imago Mundi: The International Journal for the History of Cartography》2013,65(1):168-171
English Maps: A History. By Catherine Delano‐Smith and Roger J. P. Kain. London: The British library, 1999. Toronto: University of Toronto Press, 1999. ISBN 0 7123 4609 0 (cloth); 0 7123 4660 0 (paper). Pp. xiv, 320, illus., col. plates. STG£25.00 (cloth). Abraham Ortelius and the First Atlas: Essays Commemorating the Quadricentennial of his Death, 1598–1998. Edited by Marcel van den Broecke, Peter van der Krogt and Peter Meurer. Utrecht: HES Publishers, 1998. ISBN 90 6194 388 4. Pp. 430, illus.,. 19 col. plates. DFL371.00(cloth). A Biographical Index of East India Company Maritime Service Officers 1600–1834. By Anthony Farrington. London: The British Library, 1999. ISBN 0 7123 4647 3. Pp. 886. STG£85.00 (cloth). Catalogue of East India Company Ships’ Journals and Logs 1600–1834. By Anthony Farrington. London: The British Library, 1999. ISBN 0 7123 4646 5. Pp. 789. STG£85.00 (doth). Ordnance Survey Small‐Scale Maps: Indexes: 1801–1998. By Roger Hellyer. Kerry, Newtown, Montgomeryshire: David Archer, 1999. ISBN 0951757954. Pp. xxiv, 264, illus. STG£35.00 (cloth). [David Archer, Kerry, Wales SY16 . 4PD.] 相似文献
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Material Choices for Fibre in the Neolithic: An Approach through the Measurement of Mechanical Properties 下载免费PDF全文
Studies of the Mesolithic–Neolithic transition in Europe have focused on plants and animals exploited for food. However, the exploitation of plants for fibres underwent a significant change with the addition of domestic flax as a fibre crop. While the technology of flax fibre processing is increasingly understood by archaeologists, its material value as a fibre crop in comparison to indigenous fibre is less well explored. We examine the mechanical properties of flax and two indigenous fibres (lime bast, willow bast), by testing fibre strips for tensile properties and discuss the results in the light of material choices in these periods. 相似文献
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