The Treaty of Shimonoseki in 1895 gave sovereignty over Taiwan and Penghu to Japan, so that the Taiwanese of that era became Japanese citizens. When the Treaty of Taipei renounced Japanese sovereignty over Taiwan and Penghu, the Japanese citizenship of the people of Taiwan and Penghu was likewise revoked.
1895 年《馬關條約》把台、澎主權割給日本，因此當時台灣人都成為「日本國民」，而《中日和約》再將這些主權放棄，台、澎居民的「國民身分」也隨之移轉。