This inscription consists of two decrees, one of which gives a certain Sthorys the Athenian citizenship, the other of which provides for a simple amendment. Despite fairly numerous editions, a number of difficulties of detail remain which seem sufficient to warrant a further discussion. In the first place, the most recent editors, Wilhelm and Meritt, while agreeing on the general substance of the text, have a number of discrepancies in their readings, though neither has provided a detailed commentary on the readings adopted. In addition, the full implications of fragment (b) have not been taken into account hitherto. Secondly, Sthorys, the recipient, is a very shadowy figure, and the precise circumstances in which he received Athenian citizenship are not altogether clear. Thirdly, the formula employed for the grant of citizenship in this decree is somewhat unusual compared with that found in other such decrees of the fifth and early fourth centuries. The purpose of this article therefore is, firstly, to provide a new text with a full critical commentary, and also to consider the physical details of the stele; secondly, to consider fully the contents of the two decrees, and in particular the status of Sthorys and the possible reasons for his honours; and finally, to discuss the formula for the grant of citizenship in this decree and in the other preserved examples of the fifth and early fourth centuries.