Peter Hackett
... that in October 1981, American doctor and mountaineer Peter Hackett became the third known person to complete a solo ascent of Mount Everest?
... that in October 1981, American doctor and mountaineer <b id="mwBB0"><a href="./Peter_Hackett_(mountaineer)" id="mwBB4" rel="mw:WikiLink" title="Peter Hackett (mountaineer)">Peter Hackett</a></b> became the third known person to complete a solo ascent of <a href="./Mount_Everest" id="mwBB8" rel="mw:WikiLink" title="Mount Everest">Mount Everest</a>?