Roman emperor <a href="https://en.wikipedia.org/wiki/Trajan" id="mwFw" rel="mw:WikiLink" title="Trajan">Trajan</a> inaugurates the <a href="https://en.wikipedia.org/wiki/Aqua_Traiana" id="mwGA" rel="mw:WikiLink" title="Aqua Traiana">Aqua Traiana</a>, an <a href="https://en.wikipedia.org/wiki/Roman_aqueduct" id="mwGQ" rel="mw:WikiLink" title="Roman aqueduct">aqueduct</a> that channels water from <a href="https://en.wikipedia.org/wiki/Lake_Bracciano" id="mwGg" rel="mw:WikiLink" title="Lake Bracciano">Lake Bracciano</a>, <span about="#mwt11" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"40"},"2":{"wt":"km"},"3":{"wt":"mi"},"abbr":{"wt":"off"}},"i":0}}]}' id="mwGw" typeof="mw:Transclusion">40 kilometres (25 miles)</span> northwest of <a href="https://en.wikipedia.org/wiki/Ancient_Rome" id="mwHA" rel="mw:WikiLink" title="Ancient Rome">Rome</a>.