Ab urbe condita
Titus Livius (Livy)
Livy. History of Rome, Volumes 1-2. Roberts, Canon, Rev, translator. London, New York: J. M. Dent and Sons; E. P. Dutton and Co., 1912.
Such was the origin of the first temple dedicated in Rome. And the gods decreed that though its founder did not utter idle words in declaring that posterity would thither bear their spoils, still the splendour of that offering should not be dimmed by the number of those who have rivalled his achievement. For after so many years have elapsed and so many wars been waged, only twice have the spolia opima been offered.[*](The first time by Cornelius Cossus, who slew Lars Tolumnius, B.C. 437 (see Book IV. chap. xx. p. 243); the second by Claudius Marcellus, who slew Viridomarus, king of the Gauls, B.C. 222.) So seldom has Fortune granted that glory to men.