Redoutable
...that the French Navy ship Redoutable was built in 1876 and was the first warship in the world to use steel as the principal building material?
...that the <a href="./French_Navy" id="mwBhU" rel="mw:WikiLink" title="French Navy">French Navy</a> ship <i id="mwBhY"><b id="mwBhc"><a class="mw-redirect" href="./Redoutable_(1876)" id="mwBhg" rel="mw:WikiLink" title="Redoutable (1876)">Redoutable</a></b></i> was built in 1876 and was the first warship in the world to use <a href="./Steel" id="mwBhk" rel="mw:WikiLink" title="Steel">steel</a> as the principal building material?