Swan by-election, 1918
...that the Swan by-election, 1918 not only resulted in the election of the youngest person ever to be elected to the Parliament of Australia, but directly prompted the introduction of instant-runoff voting in Australia?
...that the <b id="mwD6k"><a class="mw-redirect" href="./Swan_by-election,_1918" id="mwD6o" rel="mw:WikiLink" title="Swan by-election, 1918">Swan by-election, 1918</a></b> not only resulted in the election of the youngest person ever to be elected to the <a href="./Parliament_of_Australia" id="mwD6s" rel="mw:WikiLink" title="Parliament of Australia">Parliament of Australia</a>, but directly prompted the introduction of <a href="./Instant-runoff_voting" id="mwD6w" rel="mw:WikiLink" title="Instant-runoff voting">instant-runoff voting</a> in Australia?