The number of Arabic documents and manuscripts of historical significance found in the Sudan is constantly growing. The national repository for such material is the National Records Office (NRO) in Khartoum, but a substantial collection of photographed, photocopied, and microfilmed documents has also been built up at the Department of History, University of Bergen, Norway. Most of this material has been brought together as a result of fieldwork in various parts of the Sudan in connection with historical research. However, at the end of the 1970s the NRO launched a campaign to collect private documents in the rural areas, with good results. Another step in the same direction was taken in 1986, when a four years' cooperative project between the Department of History, University of Bergen, Norway, and the NRO in Khartoum, was started. Organized joint field expeditions were planned and carried out from 1987 onwards for the purpose of locating and photographing private documents. This project is financed by the Norwegian Aid Agency (NORAD) and the University of Bergen, and is part of a larger program of cooperation with the University of Khartoum. Bjørkelo is the project leader on the Bergen side and Dr. Ali S. Karrar is the local coordinator in the NRO. The 1987 expedition went to al-Matamma, al-Dāmar, Berber, Ghubush, and Kadabās in the north and photographed 196 documents. The following year various religious centres of the Gezira were visited and another 96 documents were photographed. Research on these acquisitions is planned or in progress.