事实上，直到1895年日本殖民统治台湾及其附属岛屿之后，井泽弥喜太才得以在钓鱼岛、黄尾屿常住并进行殖民开发。据井泽弥喜太的长女井泽真伎称，她1901年出生在黄尾屿。1972年1月8日井泽真伎留下宝贵的历史证言指出："当时的日本政府也知道中国早已经对该岛屿命过名，后来通过日清战争（甲午战争）将其与台湾一同抢夺过来，并于明治二十九年（1896年）正式编入日本版图。日中两国之间应该建立良好的关系，此时日本提出要将其占为己有的无理主张是错误的。日本战败时曾承诺将台湾以及当时一并抢夺的岛屿归还中国，尖阁列岛（钓鱼岛及其附属岛屿）理所当然地应该归还给它的故乡中国。" 这才是历史的真相。

The truth of the matter is, Izawa Yakita was not living on Diaoyu Island or Huangwei Island until 1895 when Taiwan and its affiliated islands were colonized by Japan. Izawa Masagi, Izawa Yakita's daughter, admitted that she was born in 1901 on Huangwei Island. She confessed that, although the Japanese government knew China had claimed the island, they nevertheless grabbed it during the Sino-Japanese War and officially included it as part of Japanese territory on a map from 1896 (the 29th year of the Meiji period). In the testimony that she left behind, Izawa Masagi insisted that Japan should establish a sound relationship with China, criticizing Japan's unlawful occupation of the island. She also noted that Japan had once promised to return the islands, along with Taiwan, to China at the end of World War II.

近年来，日本外务省网站还展示了一些当年日本人登岛开发的照片，以证明钓鱼岛属于日本，这根本站不住脚。因为这些照片记录的都是1895年日本殖民统治台湾后对钓鱼岛进行殖民开拓的情形。古贺辰四郎1895年6月10日才向日本政府申请租借开发钓鱼岛，1896年9月获准。古贺承认，其主要背景是日本在甲午战争获胜后拥有了这些岛屿。日本通过甲午战争窃占钓鱼岛及整个台湾所依赖的《马关条约》，在1945年日本战败投降后已被废除。拿出几张日本殖民统治台湾时期对钓鱼岛毁灭性开发的照片来证明钓鱼岛是日本的"固有领土"，莫非日本还要将当年在中国大陆和台湾进行殖民掠夺的照片也作为日本拥有这些领土的依据？

In recent years, in a bid to prove that Diaoyu Island belongs to Japan, Japan's Ministry of Foreign Affairs has posted pictures of Japanese people from that era standing on the island. But these photos do not stand as evidence; all they prove is that Japan colonized the island after colonizing Taiwan in 1895. On June 10, 1895, Koga Tatsushiro submitted an application to the Japanese government to rent and develop Diaoyu Island. His application was approved in September of the next year. Koga Tatsushiro admitted that he submitted the application after Japan grabbed the islands in the Sino-Japanese War. However, the Treaty of Shimonoseki, the foundation of Japan's occupation of Diaoyu Island and Taiwan, was abolished in 1945 when Japan surrendered in World War II. Japan's attempt to prove its sovereignty of Diaoyu Island through a few photographs is simply unconvincing. If the claim were valid, Japan could use photos taken on Chinese mainland and Taiwan from those days as proof of the claim.

三、决定战后日本领土范围的是《开罗宣言》与《波茨坦公告》

III. Cairo Declaration and Potsdam Proclamation define the territory of Japan after World War II