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In the eleventh century, as ports and cities expanded their involvement in the Mediterranean, they came into contact and conflict with one another; both were integral parts of the Mediterranean renewal after the relative decline of the early Middle Ages. Of these cities, relations between Pisa and Denia were perhaps the most exemplary of the extremes possible within the new Mediterranean. On the surface, theirs would seem to be merely a series of clashes based on religious friction, jihād, or territorial ambitions, as shown by their conflict over Sardinia. However, when viewed together with diplomatic and commercial relations, it becomes apparent that violence was only a part of the Mediterranean dynamic, and that where conflict did exist it was along new lines. Economic ambitions were becoming the motivating factor, and trade routes and commerce were the new stakes in the medieval Mediterranean. 相似文献
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J. Bruce Jacobs 《Australian Journal of International Affairs》2008,62(4):460-477
In January and March 2008, Taiwan's citizens voted primarily for domestic political reasons to oust the Democratic Progressive Party administration and promulgate the second peaceful transfer of power in Taiwan's relatively young democracy. Surveys suggest that the new administration of President Ma Ying-jeou in its first few months in office has failed to meet voter expectations. Taiwan's new international relations with the United States, Japan and China have also raised concerns both within Taiwan and overseas.
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David R. Braun Thomas Plummer Peter Ditchfield Joseph V. Ferraro David Maina Laura C. Bishop Richard Potts 《Journal of archaeological science》2008
The archaeological record of Oldowan hominins represents a diverse behavioral system. It has been suggested that exploitation of lithic resources by Oldowan hominins was simplistic and represented mostly use of local sources of stone. Here we investigate the raw material selection and transport behaviors of Oldowan hominins reflected in the stone artifact assemblages from the Kanjera South Formation, South Rachuonyo District, Kenya. Using geochemical methods (ED-XRF) artifacts are linked to primary and secondary source outcrops throughout southwestern Kenya. These data show that hominins selected raw materials for transport at frequencies that are significantly different from their availability on ancient landscapes. Furthermore, a substantial proportion of the assemblage represents transport over relatively long distances (>10 km). Our study further suggests that in the early stages of stone tool use hominins used a wide variety of raw materials and selected these materials at some distance from their eventual discard locations. Early hominin behavior may have incorporated an understanding of raw material source distributions across a more extensive landscape than has been previously documented. This supports the growing perspective that Oldowan technology represents a more complex behavioral pattern than is usually associated with the beginnings of hominin tool use. 相似文献
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