Chinese Mapped America Before 1430 (Harvard University Archive) Siu-Leung Lee 李兆良 2019.2.10 My research paper presented at the International Cartographic Conference (Washington DC, July 4, 2017), is now available from Harvard University archive, SAO/NASA ADS ...
下面几张图提供大家思考。托勒密世界地图,原来地图不存,据说是1482年根据托勒密的数据重绘的。 请注意地图标示的算符数字。 Ptolemy 's world map, reconstituted from Ptolemy's Geography (circa 150) in the 15th century, indicating Sinae ( China ) at the extreme right, ...