Fifty years of Japanese administration of <a href="https://en.wikipedia.org/wiki/Geography_of_Taiwan" id="mwng" rel="mw:WikiLink" title="Geography of Taiwan">Taiwan</a> <a href="https://en.wikipedia.org/wiki/Retrocession_Day" id="mwnw" rel="mw:WikiLink" title="Retrocession Day">formally ends</a> when the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Republic_of_China_(1912–49)" id="mwoA" rel="mw:WikiLink" title="Republic of China (1912–49)">Republic of China</a> assumes control.