<head>III. From the Epilogue</head>Polybius says at the end of his work: "Accordingly, having achieved this I returned home from <a class="linkToPlace" target="_blank" href="/place?placename=Rome&groupId=935&placeId=1669">Rome</a>. I had, as it were, been enabled to capitalize the results of my previous political action, a favour which my devotion to <a class="linkToPlace" target="_blank" href="/place?placename=Rome&groupId=935&placeId=1669">Rome</a> well merited.
Therefore, I pray to all the gods, that during the rest of my life all may remain in the same condition and on the same terms, seeing as I do how apt Fortune is to envy men, and how she especially puts forth her power in cases where we think that our life has been most blessed and most successful.
"So it happened to fall out; and I, now I have reached the end of my whole work, wish, after recalling to my readers the initial scheme that I laid before them as the foundation of the work, to give a summary of the whole subject matter, establishing both in general and in particular the connexion between the beginning and the end.
I explained therefore at the beginning that I would commence my introductory books from the point where Timaeus left off,
and after a cursory view of events in <a class="linkToPlace" target="_blank" href="/place?placename=Italy&groupId=656&placeId=1199">Italy</a>, <a class="linkToPlace" target="_blank" href="/place?placename=Sicily&groupId=973&placeId=1724">Sicily</a>, and <a class="linkToPlace" target="_blank" href="/place?placename=Africa&groupId=300&placeId=294">Africa</a> — this author having dealt only with these parts in his history — upon reaching the time when Hannibal was entrusted with the Carthaginian forces, when Philip, son of Demetrius, succeeded to the throne of Macedon, when Cleomenes of <a class="linkToPlace" target="_blank" href="/place?placename=Sparta&groupId=660&placeId=1208">Sparta</a> was exiled from Greece and when Antiochus inherited the throne of <a class="linkToPlace" target="_blank" href="/place?placename=Syria&groupId=995&placeId=502">Syria</a> and Ptolemy Philopator that of <a class="linkToPlace" target="_blank" href="/place?placename=Egypt&groupId=556&placeId=368">Egypt</a>,
I undertook to make a fresh beginning from this date, i.e. the 139th Olympiad, and henceforth to deal with the general history of the whole world, classing it under Olympiads, dividing those into years and taking a comparative view of the succession of events until the capture of <a class="linkToPlace" target="_blank" href="/place?placename=Carthage&groupId=441&placeId=820">Carthage</a>, the battle of the Achaeans and Romans at the Isthmus and the consequent settlement of Greece.
As I said, students by this treatment will attain the best and most salutary result, which is to know how and by what system of polity the whole world was subjected to the single rule of <a class="linkToPlace" target="_blank" href="/place?placename=Rome&groupId=935&placeId=1669">Rome</a> — an event without any parallel in the past.
Now that I have actually accomplished all this, nothing remains for me but to indicate the dates included in the history, to give a list of the number of books and an index of the whole work."
Walbank Commentary