Japanese literature of the 12th through 16th centuries
... that Japanese literature of the 12th through 16th centuries ceased to be the reserve of the aristocracy and became "national literature"?
... that <b id="mwAVI"><a href="./Medieval_Japanese_literature" id="mwAVM" rel="mw:WikiLink" title="Medieval Japanese literature">Japanese literature of the 12th through 16th centuries</a></b> ceased to be the reserve of the aristocracy and became "national literature"?