Approaches to Comparison in Medieval Studiesmedieval worlds 1 (2015)
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MedievalWorlds.Approaches to Comparison in Medieval Studies, pp. 71-85, 2015/06/30
medieval worlds 1 (2015)
Archaeological data, combined with GIS analysis has given us new perspectives on eleventh century medieval period envoy missions from the Song Dynasty (960-1279 CE) to the Liao Empire (907-1125 CE). Lu Zhen and Wang Zhen were Song envoys sent in 1008 and 1012 by the Song to the Liao’s Middle Capital or Zhongjing, in present day Chifeng Inner Mongolia, the Peoples Republic of China (PRC). Lu Zhen recorded information about the route he traveled that allows us to locate it on administrative maps of the Song-Liao period and present day maps of the PRC. Viewshed analysis of the route combined with information Wang Zhen recorded about it lets us calculate population densities for an area that he passed through that can be used to extrapolate population density estimates from archaeological data for other areas in Chifeng. Viewshed analysis provides insights about the areal extent of the landscape and what man-made structures the envoys might have been able to see along the route during their travels. Combined, these analyses give us better insights into some of the concerns that the Liao had about these foreign missions crossing their territory and the steps they took to address them.
Keywords: Liao Empire, Song Dynasty, archaeology, GIS, China, landscape analysis, viewsheds, optimal routes