First flight of the <a href="https://en.wikipedia.org/wiki/Turbojet" id="mw-Q" rel="mw:WikiLink" title="Turbojet">turbojet</a>-powered <a href="https://en.wikipedia.org/wiki/Heinkel_He_178" id="mw-g" rel="mw:WikiLink" title="Heinkel He 178">Heinkel He 178</a>, the world's first <a href="https://en.wikipedia.org/wiki/Jet_aircraft" id="mw-w" rel="mw:WikiLink" title="Jet aircraft">jet aircraft</a>.