Captain <a href="https://en.wikipedia.org/wiki/Nathaniel_Palmer" id="mwbA" rel="mw:WikiLink" title="Nathaniel Palmer">Nathaniel Palmer</a> becomes the first American to see Antarctica. (The <a href="https://en.wikipedia.org/wiki/Antarctic_Peninsula" id="mwbQ" rel="mw:WikiLink" title="Antarctic Peninsula">Palmer Peninsula</a> is later named after him.)