Archdiocese of Gagnoa, Ivory Coast Jun 272009 Founded 25 June 1956 by Pope Pius XII Elevated 19 December 1994 to an Archdiocese on by Pope John Paul II Suffragans Bishops Archbishop Joseph Yapo Aké Additional Information Catholic-Hierarchy.Org MLA Citation “Archdiocese of Gagnoa, Ivory Coast”. Gazetteer of the Faith. Saints.SQPN.com. 21 June 2012. Web. 24 May 2013. <http://saints.sqpn.com/archdiocese-of-gagnoa-ivory-coast/>