<i>Guang Yutu</i>, Map 62. 1st Map of the Liaodong area of the Ming Empire, now Liaoning Province. Great Wall and Willow Palisade shown. Grids of 100 li square (roughly 30×30 km or about 20×20 miles). LOC copy with some damage.
Zhu Siben, edited and updated by Luo Hongxian
1558
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