<a href="https://en.wikipedia.org/wiki/STS-1" id="mwASY" rel="mw:WikiLink" title="STS-1">STS-1</a>: The first operational <a href="https://en.wikipedia.org/wiki/Space_Shuttle" id="mwASc" rel="mw:WikiLink" title="Space Shuttle">Space Shuttle</a>, <i id="mwASg"><a href="https://en.wikipedia.org/wiki/Space_Shuttle_Columbia" id="mwASk" rel="mw:WikiLink" title="Space Shuttle Columbia">Columbia</a></i> completes its first test flight.