Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
Philip of Macedonia and His Delay
Macedonia might have exercised an influence over the course of events more decisive than that of Syracuse. From the Eastern powers neither furtherance nor hindrance was for the moment to be expected. Antiochus the Great, the natural ally of Philip, had, after the decisive victory of the Egyptians at Raphia in 537, to deem himself fortunate in obtaining peace from the indolent Philopator on the basis of the -status quo ante-.
The rivalry of the Lagidae and the constant apprehension of a renewed outbreak of the war on the one hand, and insurrections of pretenders in the interior and enterprises of all sorts in Asia Minor, Bactria, and the eastern satrapies on the other, prevented him from joining that great anti-Roman alliance which Hannibal had in view. The Egyptian court was decidedly on the side of Rome, with which it renewed alliance in 544; but it was not to be expected of Ptolemy Philopator, that he would support otherwise than by corn-ships.
Accordingly there was nothing to prevent Greece and Macedonia from throwing a decisive weight into the great Italian struggle except their own discord; they might save the Greek name, if they had the self-control to stand by each other for but a few years against the common foe. Such sentiments doubtless were current in Greece.
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Reference address : https://www.ellopos.net/elpenor/rome/3-06-war-hannibal-cannae-zama.asp?pg=22