evidence: The "White Paper" states that Diaoyu Dao was first discovered, named, and used by China, and therefore that the Senkaku Islands are Chinese sovereign territory. Namely, the paper lists the 1403 Shunfeng Xiangsong as the earliest historical text to carry names including Diaoyu Dao (Uotsuri Island) and Chiwei Yu (Taisho Island), claiming this as evidence that China had discovered and named Diaoyu Dao in the fourteenth or fifteenth century.16 This text does indeed include such terms as Diaoyu Yu and Chikan Yu, older names for those islands, but from the perspective of international law this cannot be taken as evidence of China's having discovered or named them.