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Some 660 shipwrecks earlier than AD 1500 have been reported from the Mediterranean and the Roman Provinces. Study of their location, cargoes, date, and other features has been made easier by a computer data file. The system has been specially written in COBOL for use on an ICL 4/75; input is from 80-column cards to magnetic tape, and output is normally in the form of printed lists. Despite limitations, the index has already proved a valuable aid to research.  相似文献   
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It has been suggested that between 80 and 35 ka the Middle Stone Age record of South Africa reveals episodes of inventiveness and innovation, punctuated by apparent returns to more conventional technologies. One such episode is the Howiesons Poort (HP). The appearance of a range of small geometric forms, apparently used as insets in multi-component tools, has been considered as evidence of improved hunting weapons, with possible social and symbolic connotations. On the basis of evidence such as backed tool production, small blade technology, the occurrence of typical end-scrapers and burins similar to those encountered in the European Upper Paleolithic, long-distance transport of fine-grained raw materials, and non-lithic novelties, the HP is associated with increased levels of technological efficiency and with behavioral innovations that could have allowed the expansion of African populations to other regions. Yet our knowledge of HP technology and tool production is limited to the analysis of Klasies River Main site by Singer and Wymer and Sarah Wurz, and a few preliminary reports from other sites. This is why we present here a detailed technological and typological analysis of several HP and post-HP assemblages from the well-excavated, well-dated and well-stratified site of Rose Cottage. Our analysis shows: (a) that the HP blade production was a real technical innovation, but was not based on indirect percussion, as often suggested; (b) that blade production was based on the use of marginal percussion which does not occur in the blade production of the Eurasian Middle Paleolithic; (c) that the tool kit was dominated by backed pieces, but not all can be considered as hunting weapons; (d) that neither end-scrapers nor burins are typical of this industry and are no more an antecedent to the European Upper Paleolithic than the end-scrapers and burins of the Middle Paleolithic; (e) that patterns of raw material procurement do not conform to models based on evidence from Klasies; (f) that diachronic changes within the Rose Cottage sequence indicate slow, gradual abandonment of the technological style of the HP; (g) that the post-HP assemblages are of MSA character and are typologically and technologically quite similar to the European Middle Paleolithic; (h) that the lack of persistence of the HP innovations is in need of an explanation. The HP is not a monolithic entity. Implications for the symbolic interpretations of the HP phenomenon are discussed.  相似文献   
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Herodotus demonstrably used Aeschylus’ Persae at various points in his account of the battle of Salamis. The author argues that Herodotus relied on the Persae far more heavily and in far more places than commonly admitted owing to Herodotus’ thoroughgoing interpretation and revision of his source. Tracing such interpretation and revision reveals much about Herodotus as an historian; moreover, the demonstrable use of a written source (which Herodotus, in fact, never mentions) raises additional questions about the extent of Herodotus’ reliance upon written sources elsewhere.  相似文献   
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Luminescence dating has been applied to ceramic bricks sampled from a selection of English medieval ecclesiastical and secular buildings in Essex, Kent and Lincolnshire, ranging in age from the fourth to the late sixteenth centuries. The results obtained for the Anglo-Saxon churches, which included Brixworth, confirmed the reuse of Roman brick in all cases. The dates for the earliest medieval brick type indicate that brick making was reintroduced during the eleventh century, a century earlier than previously accepted, and dates for bricks from the same secular Tudor building indicate that the practice of recycling of building materials during the late medieval period was also applied to brick.  相似文献   
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The Belgammel Ram was found off the coast of Libya in 1964, and examined during 2008–9. The following techniques were used: surface non‐contact digitizing using a laser scanner, reflectance transformation imaging using polynomial texture mapping and hemi‐spherical harmonics, digital photogrammetry with dense surface modelling, structured light optical scanning, and X‐ray fluorescence analysis. For internal structure the ram was examined by X‐radiography and 3‐D X‐ray tomography. Metallurgical composition was studied by micro‐drilling and subjecting the samples to scanning electron microscope X‐ray micro‐analysis, micro X‐ray fluorescence and X‐ray backscatter. The lead isotope composition was analysed. The alloy has average percentage composition Cu = 86.9, Sn = 6.3, Pb = 6.6, and Zn = < 0.10. The Belgammel Ram is probably a Hellenistic‐Roman proembolion from a small military vessel or tesseraria. The archived data are at the Faculty of Engineering and Environment, Engineering Sciences, Material Data Centre, University of Southampton ( muvis@soton.ac.uk ).  相似文献   
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Actualites     
Nora, P., ed., Les Lieux de memoire (Gallimard, 1984–1993), 7 vols; last published, Les France, 3. De l'archive à l'emblème, 1034pp., ISBN 2 07 072304 6  相似文献   
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