tradition
... that scholars estimate that it takes two or three generations for a tradition to emerge?
... that scholars estimate that it takes two or three <a href="./Generation" id="mwCjM" rel="mw:WikiLink" title="Generation">generations</a> for a <b id="mwCjQ"><a href="./Tradition" id="mwCjU" rel="mw:WikiLink" title="Tradition">tradition</a></b> to emerge?