Boulder Dam (later <a href="https://en.wikipedia.org/wiki/Hoover_Dam" id="mwsw" rel="mw:WikiLink" title="Hoover Dam">Hoover Dam</a>) begins to generate electricity and transmit it to <a href="https://en.wikipedia.org/wiki/Los_Angeles" id="mwtA" rel="mw:WikiLink" title="Los Angeles">Los Angeles</a>.