Article by Christopher A. Rollston, Visiting Professor of Northwest Semitic Languages and Literatures, George Washington University:
Cyrus was certainly famous in antiquity (and in the modern period) for his benevolence, even among the Greeks, due in part to Xenophon’s lengthy work entitled “Cyropaidia” (literally, the ‘Education of Cyrus’). But during excavations in Babylon in 1879, the now famous “Cyrus Cylinder” was found, galvanizing further the reputation of Cyrus. Certain salient facts about this cuneiform text are worth mentioning at the outset: (a) In terms of size, it is quite small, about ten inches by four inches, and cylindrical in shape. (b) In terms of language, although Cyrus was a Persian, the Cyrus Cylinder is written in the Akkadian language (i.e., not in Persian, the native language of Cyrus). Of course, this makes sense, as the target audience for this inscription was Babylonian, not Persian. (c) In terms of the amount of textual content, the Cylinder is relatively short, just a few hundred words long, preserved in some forty to fifty lines of cuneiform text. (d) In terms of date, it arguably hails from the very first years of the reign of Cyrus. (e) In terms of archaeological context, it was found as a “foundation deposit” in an ancient Babylonian building.