Josephus AD, in his "Antiquities of the Jews" xi, 8, 5 tells of a visit that Alexander is purported to have made to Jerusalem, where he met the high priest Jaddua and the assembled Jews, and was shown the book of Daniel in which it was prophesied that some one of the Greeks would overthrow the empire of Persia. Alexander believed himself to be the one indicated, and was pleased. The pertinent passage in Daniel would seem to be VIII. 3–8 which tells of the overthrow of the two-horned ram by the one-horned goat, the one horn of the goat being broken in the encounter ...The interpretation of this is given further ... "The ram which thou sawest that had the two horns, they are the kings of Media and Persia. And the rough he-goat is the king of Greece." This identification is accepted by the church fathers ...