The <a href="https://en.wikipedia.org/wiki/International_Working_Union_of_Socialist_Parties" id="mwuA" rel="mw:WikiLink" title="International Working Union of Socialist Parties">International Working Union of Socialist Parties</a> is founded in <a href="https://en.wikipedia.org/wiki/Vienna" id="mwuQ" rel="mw:WikiLink" title="Vienna">Vienna</a>.