“…Waltraud Heindl argues that such documents offer 'a more colourful picture than the dry statistical data, but they do not reveal insights that are fundamentally new to scholars' (Heindl & Tichy, 1990, p. 15). Yet a number of new works in the field of research into educational biography [11] as well as in historical research into processes of socialisation contradict this argument [12].…”