nine consecutive titles
... that prior to winning their first of nine consecutive titles in the 1965–66 season, Celtic had not been champions of the Scottish Football League for 12 years?
... that prior to winning their first of <b id="mwB4g"><a href="./Nine_in_a_row" id="mwB4k" rel="mw:WikiLink" title="Nine in a row">nine consecutive titles</a></b> in the <a href="./1965–66_Scottish_Division_One" id="mwB4o" rel="mw:WikiLink" title="1965–66 Scottish Division One">1965–66 season</a>, <a href="./Celtic_F.C." id="mwB4s" rel="mw:WikiLink" title="Celtic F.C.">Celtic</a> had not been champions of the <a href="./Scottish_Football_League" id="mwB4w" rel="mw:WikiLink" title="Scottish Football League">Scottish Football League</a> for 12 years?