Abstract

It once seemed almost self-evident that the extraordinary progress of Greek astronomy and mathematics in the Hellenistic age were, at least in part, the result of contact with Babylonian and Egyptian culture. But, whatever they may have owed to Babylonia in the exact sciences, there is now a growing consensus that even as early as Eudoxus the Greeks had advanced beyond the point where they might have profited from Egyptian help, and it is not easy to find a solid basis for the widespread Greek belief in the superior wisdom of the Egyptian hierarchy. Yet the preface to the famous Calendar for the Saite nome, P. Hibeh 27, provides circumstantial evidence that one Greek, at least, in the fourth or early third century B.C., found in Egypt an instrument for measuring the time at night which was new to him and which he may well have found impressive in its accuracy