Kim Am
... that Kim Am, an 8th-century Korean scholar, shaman and "master of yin-yang", was the only person to hold the title of the "Great Professor of Astronomy" in Korean history?
... that <b id="mwAtU"><a href="./Kim_Am" id="mwAtY" rel="mw:WikiLink" title="Kim Am">Kim Am</a></b>, an 8th-century Korean scholar, <a href="./Korean_shamanism" id="mwAtc" rel="mw:WikiLink" title="Korean shamanism">shaman</a> and "master of <a class="mw-redirect" href="./Yin-yang" id="mwAtg" rel="mw:WikiLink" title="Yin-yang">yin-yang</a>", was the only person to hold the title of the "Great Professor of Astronomy" in <a class="mw-redirect" href="./Korean_history" id="mwAtk" rel="mw:WikiLink" title="Korean history">Korean history</a>?