world's expositions
...that Paris has held six BIE-sanctioned world's expositions, but the most recent was in 1937?
...that <a href="./Paris" id="mwAt0" rel="mw:WikiLink" title="Paris">Paris</a> has held six <a class="mw-redirect" href="./Bureau_of_International_Expositions" id="mwAt4" rel="mw:WikiLink" title="Bureau of International Expositions">BIE</a>-sanctioned <b id="mwAt8"><a class="mw-redirect" href="./List_of_world's_expositions" id="mwAuA" rel="mw:WikiLink" title="List of world's expositions">world's expositions</a></b>, but the most recent was in 1937?