context: Ismail Ould Cheikh Ahmed (born 9 November 1960 in Nouakchott - Mauritania), Mauritanian economist and diplomat, appointed Deputy United Nations Special Envoy to Libya (2014), [1] he served as Resident Coordinator of the United Nations Development Program in Syria (2008-2012), and took over the same mission in Yemen (2012-2014). In early 2014, he was appointed Deputy United Nations Special Envoy to Libya, and was then chosen by the Secretary-General of the United Nations in December 2014 to be his Special Envoy to coordinate efforts to combat the "Ebola" virus that has swept many countries in West Africa. On April 25, 2015, the Mauritanian appointed Ould Cheikh, a UN envoy to Yemen, to succeed Moroccan Gamal Benomar.
question: When did Ismail Ould Sheikh Ahmed appoint the United Nations Special Envoy to Libya?
answers.text: 2014