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.
Some again claim this honour for the new consuls, while a few restrict it to L. Volumnius, to whom they say Samnium was assigned as his sphere of action.