Clinton Thomas Dent
...that Clinton Thomas Dent made eighteen failed attempts to climb the Aiguille du Dru before making the first ascent in September 1878?
...that <b id="mwBuA"><a href="./Clinton_Thomas_Dent" id="mwBuE" rel="mw:WikiLink" title="Clinton Thomas Dent">Clinton Thomas Dent</a></b> made eighteen failed attempts to climb the <a href="./Aiguille_du_Dru" id="mwBuI" rel="mw:WikiLink" title="Aiguille du Dru">Aiguille du Dru</a> (<i id="mwBuM">pictured</i>) before making the <a href="./First_ascent" id="mwBuQ" rel="mw:WikiLink" title="First ascent">first ascent</a> in September 1878?