This is the first translation of a classic work (Bahth fi nnsh' at 'ilm al ta' rikh 'inda l-'Arab) by the eminent Arab historian A. A. Duri. Published in Beirut in 1960, Duri's book was the first comprehensive effort to trace the origins and early development of Arab historical writing, and to resolve some extremely complex and still debated questions about the reliability of the Arabic historical sources.