In chapter five, The Problem of Historical Knowledge, Craig defends the importance of history to Christianity in light of the popular and scholarly rejection of history. Craig traces historiography as a science. Historiography is defined as "the study of the way history has been and is written – the history of historical writing", which means that, "When you study 'historiography' you do not study the events of the past directly, but the changing interpretations of those events in the works of individual historians" (The Methods and Skills of History: A Practical Guide, 1988, p. 223, ISBN 0-88295-982-4). In the Medieval Period (fifth to the eleventh century), historiography waned greatly. Anselm, therefore, defended Christianity largely from the Biblical text itself.