1919 Australian federal election
... that the 1919 Australian federal election was the first to use preferential voting?
... that the <b id="mwAoA"><a href="./1919_Australian_federal_election" id="mwAoE" rel="mw:WikiLink" title="1919 Australian federal election">1919 Australian federal election</a></b> was the first to use <a href="./Preferential_voting" id="mwAoI" rel="mw:WikiLink" title="Preferential voting">preferential voting</a>?