The mapmaker very likely acquired the information for this map, says Menzies, from an unnamed European who could have been part of the Chinese expedition.)
孟西士大膽假設，這張古地圖繪製者「極可能」從某位「曾可能」參與中國艦隊航行的歐洲人那裡，得知鄭和艦隊的航行經驗，而繪製出好望角的地形。