§13.1.1εἰ μὲν ὅμοια τοῖς ἄλλοις ἱστορίαν ἐπραγματευόμεθα, σχεδὸν ἦν ἐν τῷ προοιμίῳ περί τινων διαλεχθέντας ἐφʼ ὅσον ἦν εὔκαιρον, οὕτως ἐπὶ τὰς συνεχεῖς πράξεις μεταβιβάζειν τὸν λόγον· ὀλίγον γὰρ χρόνον ἀπολαβόντες τῇ γραφῇ, τὴν ἀναστροφὴν ἂν εἴχομεν τὸν ἀπὸ τῶν προοιμίων καρπὸν προσλαμβάνεσθαι·
If we were treating history in a manner similar to others, it would have been appropriate, almost, to move the narrative on to the continuous events only after having discussed certain matters in the preface as far as was suitable; for if we had taken a short period of time for our writing, we would have had the leisure to receive additionally the fruit derived from prefaces.
§13.1.2ἐπεὶ δὲ ἐν ὀλίγαις βίβλοις ἐπηγγειλάμεθα μὴ μόνον τὰς πράξεις ἐφʼ ὅσον ἂν δυνώμεθα γράψειν, ἀλλὰ καὶ περιλήψεσθαι χρόνον πλείονα τῶν χιλίων καὶ ἑκατὸν ἐτῶν, ἀναγκαῖόν ἐστι τὸν πολὺν λόγον τῶν προοιμίων παραπέμψαντας ἐπʼ αὐτὰς ἔρχεσθαι τὰς πράξεις, τοῦτο μόνον προειπόντας, ὅτι κατὰ μὲν τὰς προηγουμένας ἓξ βίβλους ἀνεγράψαμεν τὰς ἀπὸ τῶν Τρωικῶν πράξεις ἕως εἰς τὸν ὑπὸ τῶν Ἀθηναίων ψηφισθέντα πόλεμον ἐπὶ Συρακοσίους, εἰς ὃν ἀπὸ Τροίας ἁλώσεως ἐστὶν ἔτη ἑπτακόσια ἑξήκοντα ὀκτώ·
But since we promised in a few books not only to write of the events as far as we should be able, but also to encompass a period of more than one thousand one hundred years, it is necessary to pass over the long discourse of prefaces and come to the events themselves, saying only this beforehand: that in the preceding six books we recorded the events from the Trojan times down to the war voted by the Athenians against the Syracusans, to which war from the capture of Troy is seven hundred and sixty-eight years.
§13.1.3ἐν ταύτῃ δὲ προσαναπληροῦντες τὸν συνεχῆ χρόνον, ἀρξόμεθα μὲν ἀπὸ τῆς ἐπὶ Συρακοσίους στρατείας, καταλήξομεν δʼ ἐπὶ τὴν ἀρχὴν τοῦ δευτέρου πολέμου Καρχηδονίοις πρὸς Διονύσιον τὸν Συρακοσίων τύραννον.
And in this book, filling up the continuous time, we shall begin with the expedition against the Syracusans, and we shall end at the beginning of the second war of the Carthaginians against Dionysius, the tyrant of the Syracusans.