<a href="https://en.wikipedia.org/wiki/Argentina" id="mwARY" rel="mw:WikiLink" title="Argentina">Argentina</a>, <a href="https://en.wikipedia.org/wiki/Brazil" id="mwARc" rel="mw:WikiLink" title="Brazil">Brazil</a>, <a href="https://en.wikipedia.org/wiki/Uruguay" id="mwARg" rel="mw:WikiLink" title="Uruguay">Uruguay</a> and <a href="https://en.wikipedia.org/wiki/Paraguay" id="mwARk" rel="mw:WikiLink" title="Paraguay">Paraguay</a> sign the <a href="https://en.wikipedia.org/wiki/Treaty_of_Asunción" id="mwARo" rel="mw:WikiLink" title="Treaty of Asunción">Treaty of Asunción</a>, establishing <a href="https://en.wikipedia.org/wiki/Mercosur" id="mwARs" rel="mw:WikiLink" title="Mercosur">Mercosur</a>, the South Common Market.