evidence: Taiwan became part of the Republic of China on October 25, 1945, which has been celebrated since then as Retrocession Day. However, Taiwan was not made a standard province of China at that time, as most people on the island had expected. Moreover, Chiang Kai-shek appointed Ch’en Yi (Ch’en I) governor-general of the island, with powers similar to those that had been exercised by the Japanese military governors. Finally, Japanese officials, administrators, and technicians departed, leaving a vacuum that was not easy to fill. Taiwan’s economy, which had become linked to Japan’s, had to be reorganized. Japanese law, customs, and much more were to be replaced.