The IWTG once again presented itself to the interested public at the Campus Day on 17 May. Visitors not only learnt all kinds of information about studying at 91²Ö¿âBAF, but were also able to gain an insight into the working methods of a historian. Under the key question What is a source? , the IWTG exhibited a wide variety of source types - whether handwritten documents from the archive, contemporary journals or object sources.