Labrador
...that the Canadian Coast Guard icebreaker Labrador was the first ship to circumnavigate North America?
...that the <a href="./Canadian_Coast_Guard" id="mwSA" rel="mw:WikiLink" title="Canadian Coast Guard">Canadian Coast Guard</a> <a href="./Icebreaker" id="mwSQ" rel="mw:WikiLink" title="Icebreaker">icebreaker</a> <b id="mwSg"><a href="./CCGS_Labrador" id="mwSw" rel="mw:WikiLink" title="CCGS Labrador"><i id="mwTA">Labrador</i></a></b> was the first ship to <a class="mw-redirect" href="./Circumnavigate" id="mwTQ" rel="mw:WikiLink" title="Circumnavigate">circumnavigate</a> <a href="./North_America" id="mwTg" rel="mw:WikiLink" title="North America">North America</a>?