Tan Qixiang
... that it took Tan Qixiang more than 30 years to finish his most important work, the Historical Atlas of China?
... that it took <b id="mwCFo"><a href="./Tan_Qixiang" id="mwCFs" rel="mw:WikiLink" title="Tan Qixiang">Tan Qixiang</a></b> more than 30 years to finish his most important work, the <i id="mwCFw"><a class="mw-redirect" href="./Historical_Atlas_of_China_(1982)" id="mwCF0" rel="mw:WikiLink" title="Historical Atlas of China (1982)">Historical Atlas of China</a></i>?