Pu'u 'O'o
...that the eruption of Pu'u 'O'o added 544 acres (2.2 km²) of land to the island of Hawaii?
...that the <a class="mw-redirect" href="./Volcanic_eruption" id="mwtQ" rel="mw:WikiLink" title="Volcanic eruption">eruption</a> of <b id="mwtg"><a class="mw-redirect" href="./Pu'u_'O'o" id="mwtw" rel="mw:WikiLink" title="Pu'u 'O'o">Pu'u 'O'o</a></b> added 544 <a href="./Acre" id="mwuA" rel="mw:WikiLink" title="Acre">acres</a> (2.2<span id="mwuQ" typeof="mw:Entity"> </span>km²) of land to the island of <a class="mw-redirect" href="./Hawaii_Island" id="mwug" rel="mw:WikiLink" title="Hawaii Island">Hawaii</a>?