John Diamond
...that blackface minstrel dancer John Diamond won numerous "Ethiopian" dance competitions until he was defeated by a real black man known as Master Juba?
...that <a href="./Blackface" id="mwBFA" rel="mw:WikiLink" title="Blackface">blackface</a> <a href="./Minstrel_show" id="mwBFE" rel="mw:WikiLink" title="Minstrel show">minstrel</a> dancer <b id="mwBFI"><a href="./John_Diamond_(dancer)" id="mwBFM" rel="mw:WikiLink" title="John Diamond (dancer)">John Diamond</a></b> (<i id="mwBFQ">pictured</i>) won numerous "Ethiopian" dance competitions until he was defeated by a real black man known as <a href="./Master_Juba" id="mwBFU" rel="mw:WikiLink" title="Master Juba">Master Juba</a>?