Ferdinandea
...that Ferdinandea was a volcanic island near Sicily which was claimed by four countries when it appeared in 1831, but was destroyed by erosion less than a year later?
...that <b id="mwtQ"><a class="mw-redirect" href="./Ferdinandea" id="mwtg" rel="mw:WikiLink" title="Ferdinandea">Ferdinandea</a></b> was a <a href="./Volcano" id="mwtw" rel="mw:WikiLink" title="Volcano">volcanic</a> <a href="./Island" id="mwuA" rel="mw:WikiLink" title="Island">island</a> near <a href="./Sicily" id="mwuQ" rel="mw:WikiLink" title="Sicily">Sicily</a> which was claimed by four countries when it appeared in <a href="./1831" id="mwug" rel="mw:WikiLink" title="1831">1831</a>, but was destroyed by <a href="./Erosion" id="mwuw" rel="mw:WikiLink" title="Erosion">erosion</a> less than a year later?