In 1523 a disputation was held in Zurich where Zwingli presented his arguments; the city council was persuaded and in 1524 ordered that the churches be emptied of religious images.
Citation:
Editors. "Ulrich Zwingli preaches evangelical sermons that challenge the Catholic church in Switzerland".
The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=9931, accessed 20 June 2013.]