The dry climate of Egypt has preserved about 130,000 Arabic documents, mostly on papyrus and paper, covering the period from the 640s to 1517. Up to now, historical research has mostly relied on literary sources; yet, as in study of the history of the Ancient World and medieval Europe, using original documents will radically challenge what literary sources tell us about the Islamic world. The renaissance of Arabic papyrology has become obvious by the founding of the International Society for Arabic Papyrology (ISAP) at the Cairo conference (2002), and by its subsequent conferences in Granada...