Andrew Wheeler first went to Sudan in 1977 with the Church Mission Society (CMS). He has worked in various forms of residential and distance education, training leaders for the Episcopal Church. He and his wife have also worked with Sudanese refugees in Cairo. From 1992-96 he was on the staff of the New Sudan Council of Churches as Co-ordinator for Theological Training. From 1996-2000 he worked with William Anderson and many Sudanese researchers on a project on history and faith in Sudan. This has resulted in a number of volumes, most significantly a major text on Sudanese Church History, Day of Devastation, Day of Contentment: A history of the Sudanese Church across 2000 years.