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.
For some time both sides stood in expectation, each waiting for the other to raise the battle-shout and begin the fighting. The sun passed the meridian before a single missile was discharged on either side.
At length the Etruscans, not caring to leave the field without securing some success, raised the battle-shout; the trumpets sounded and the standards advanced.