Think Quest Historical GIS
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下载链接：
https://cmr.earthdata.nasa.gov/search/concepts/C1214614290-SCIOPS.html
下载链接
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资源简介：
Think Quest's Historical GIS provides multiple data sets covering the last 4000
years of history. In addition, we have provided a variety of internet
applications of these data, including static images, flash animations, and
interactive applications. The data is not very accurate in terms of absolute
position, as it is only intended to demonstrate relative positions of nations
in history.
提供机构：
SCIOPS
