Yan Zhitui
...that the first reference to toilet paper was made in the year 589 AD by the Chinese scholar Yan Zhitui?
...that the first reference to <a href="./Toilet_paper" id="mwEPA" rel="mw:WikiLink" title="Toilet paper">toilet paper</a> was made in the year 589 AD by the <a href="./China" id="mwEPE" rel="mw:WikiLink" title="China">Chinese</a> scholar <b id="mwEPI"><a href="./Yan_Zhitui" id="mwEPM" rel="mw:WikiLink" title="Yan Zhitui">Yan Zhitui</a></b>?