China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 https://maps.cga.harvard.edu/tgaz/placename/hvd_111644 淮南節度使 淮南节度使 Huainan Jiedushi 防镇 防鎮 fang zhen defense command 756 4 901 4 POINT point N 32.39127 E 119.43719 唐 Tang CHGIS