Federico Italiano on Twitter: "Early Chinese cartography: The 'Yu Ji Tu', or 'Map of the Tracks of Yu Gong', carved onto a stone stele in 1137 https://t.co/u1juEgeyRQ" / Twitter

Early Chinese cartography: The 'Yu Ji Tu', or 'Map of the Tracks of Yu Gong', carved onto a stone stele in 1137

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