In Assisi, at the end of 2003, theologians and historians from various countries as well as different denominational backgrounds met to attempt an overview of religious studies in the 20th century. This meeting contributed to the debate about the effects of epistemological transitions on theology and religious studies in the 20th century. The interdisciplinary approach and the historical, political and interdenominational character of the participants' panel enabled the meeting, the proceedings of which are published here, to identity some "coordinates" on the path of the 20th century from the point of view of theological and religious studies.