The World Apostolic Congress on Mercy (WACOM) is a worldwide religious event organized every three years.
WACOM is promoted by the Board of Trustees: 17 cardinals under the direction of Christoph Schönborn. The first WACOM occurred in Rome in 2008; the second was in Kraków in 2011. The third was in Bogotá and lasted from 15 to 19 August 2014. The fourth WACOM was held in Manila on January 16 to 20 2017.
References
World Apostolic Congress on Mercy Wikipedia(Text) CC BY-SA