Piri Reis map
... that the Piri Reis map likely contains the only surviving piece of an otherwise lost map of Christopher Columbus?
... that the <b id="mwrw"><a href="./Piri_Reis_map" id="mwsA" rel="mw:WikiLink" title="Piri Reis map">Piri Reis map</a></b> likely contains the only surviving piece of an otherwise lost map of <a href="./Christopher_Columbus" id="mwsQ" rel="mw:WikiLink" title="Christopher Columbus">Christopher Columbus</a>?