Olson House
... that Olson House, made famous by its depiction in Christina's World, was designated a National Historic Landmark in June 2011?
... that <b id="mwC88"><a href="./Olson_House_(Cushing,_Maine)" id="mwC9A" rel="mw:WikiLink" title="Olson House (Cushing, Maine)">Olson House</a></b>, made famous by its depiction in <i id="mwC9E"><a href="./Christina's_World" id="mwC9I" rel="mw:WikiLink" title="Christina's World">Christina's World</a></i>, was designated a <a href="./National_Historic_Landmark" id="mwC9M" rel="mw:WikiLink" title="National Historic Landmark">National Historic Landmark</a> in <span about="#mwt54" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"Nowrap","href":"./Template:Nowrap"},"params":{"1":{"wt":"June 2011"}},"i":0}}]}' id="mwC9Q" typeof="mw:Transclusion">June 2011</span>?