Previous Image Next Image Avram Davidson. Adventures in Unhistory. 1993. Avram Davidson. Adventures in Unhistory. Conjectures on the Factual Foundations of Several Ancient Legends [etc.]. Philadelphia [i.e., King of Prussia, Penna.]: Owlswick, 1993. Publisher George Scithers’ copy, no. 1 of 72 numbered copies signed by the author and artist George Barr. No. 52.