Early scholars for a long while assigned a plethora of Old English pieces to Cynewulf on the basis that these pieces somewhat resembled the style of his signed poems. It was at one time plausible to believe that Cynewulf was author of the "Riddles of the Exeter Book", the "Phoenix", the "Andreas", and the "Guthlac"; even famous unassigned poems such as the "Dream of the Rood", the "Harrowing of Hell", and the "Physiologus" have at one time been ascribed to him.