ships named Nautilus
...that there have been six submarines and ships named Nautilus in the U.S. Navy, some as early as 1803, 67 years before Captain Nemo's Nautilus appeared in Jules Verne's 20,000 Leagues under the Sea?
...that there have been six <a class="mw-redirect" href="./Nautilus_(submarine)" id="mwAaU" rel="mw:WikiLink" title="Nautilus (submarine)">submarines</a> and <b id="mwAaY"><a class="mw-redirect" href="./Ships_named_Nautilus" id="mwAac" rel="mw:WikiLink" title="Ships named Nautilus">ships named <i id="mwAag">Nautilus</i></a></b> in the <a href="./United_States_Navy" id="mwAak" rel="mw:WikiLink" title="United States Navy">U.S. Navy</a>, some as early as <a href="./1803" id="mwAao" rel="mw:WikiLink" title="1803">1803</a>, 67 years before Captain Nemo's <i id="mwAas">Nautilus</i> appeared in <a href="./Jules_Verne" id="mwAaw" rel="mw:WikiLink" title="Jules Verne">Jules Verne's</a> <i id="mwAa0"><a class="mw-redirect" href="./Twenty_Thousand_Leagues_Under_the_Sea" id="mwAa4" rel="mw:WikiLink" title="Twenty Thousand Leagues Under the Sea">20,000 Leagues under the Sea</a></i>?