Likewise, a report in 1870 by Japan’s Ministry of Foreign Affairs, “A Confidential Inquiry into the Particulars of Korea’s Foreign Relations,” shows that the ministry recognized Dokdo as Korean territory. Indeed, the report includes the subject title “How Takeshima and Matsushima Came to Belong to Joseon” (later renamed Korea).
类似地，1870年日本外务省报告《关于朝鲜对外关系细节的秘密调查》显示，外相将独岛认作朝鲜领土。事实上，该报告的主题之一是《竹岛和松岛是如何为朝鲜王朝所有的》。