In autumn 2001 the eight million objects forming the Museum's permanent collection were further expanded by the addition of six million objects from the Wendorf Collection of Egyptian and Sudanese Prehistory.[4] These were donated by Professor Fred Wendorf of Southern Methodist University in Texas, and comprise the entire collection of artefacts and environmental remains from his excavations at Prehistoric sites in the Sahara Desert between 1963 and 1997. Other fieldwork collections have recently come from Dietrich and Rosemarie Klemm (University of Munich) and William Adams (University of Kentucky).