Final run of the <a href="https://en.wikipedia.org/wiki/Baltimore_and_Ohio_Railroad" id="mw1Q" rel="mw:WikiLink" title="Baltimore and Ohio Railroad">Baltimore and Ohio Railroad</a>'s <i id="mw1g"><a href="https://en.wikipedia.org/wiki/Royal_Blue_(train)" id="mw1w" rel="mw:WikiLink" title="Royal Blue (train)">Royal Blue</a></i> from Washington, D.C., to New York City after 68<span id="mw2A" typeof="mw:Entity"> </span>years, the first U.S. passenger train to use <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Railway_electrification_system" id="mw2Q" rel="mw:WikiLink" title="Railway electrification system">electric locomotives</a>.