My reason for writing about this war at such length, was the advisability, or rather necessity, in view of the general purpose of my history, of making clear the relations existing between Macedonia and Greece at a time which coincides with the period of which I am about to treat. Just about the same time, by the death of Euergetes, Ptolemy Philopator succeeded to the throne of Egypt. At the same period died Seleucus, son of that Seleucus who had the double surnames of Callinicus and Pogon: he was succeeded on the throne of Syria by his brother Antiochus. The deaths of these three sovereigns—Antigonus, Ptolemy, and Seleucus—fell in the same Olympiad, as was the case with the three immediate successors to Alexander the Great,—Seleucus, Ptolemy, and Lysimachus,—for the latter all died in the 124th Olympiad, and the former in the 139th. I may now fitly close this book. I have completed the introduction and laid the foundation on which my history must rest. I have shown when, how, and why the Romans, after becoming supreme in Italy, began to aim at dominion outside of it, and to dispute with the Carthaginians the dominion of the sea. I have at the same time explained the state of Greece, Macedonia, and Carthage at this epoch. I have now arrived at the period which I originally marked out,—that namely in which the Greeks were on the point of beginning the Social, the Romans the Hannibalic war, and the kings in Asia the war for the possession of Coele-Syria. The termination therefore of the wars just described, and the death of the princes engaged in them, forms a natural period to this book.