1957 Polish legislative elections
...that in the 1957 Polish legislative elections, only 723 of 60,000 candidates were allowed to run?
...that in the <b id="mwDD4"><a class="mw-redirect" href="./Polish_legislative_election,_1957" id="mwDD8" rel="mw:WikiLink" title="Polish legislative election, 1957">1957 Polish legislative elections</a></b>, only 723 of 60,000 candidates were allowed to run?