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.
Etruscans. When the sacrifice was completed the captain-general sent a messenger to summon all those who were of noble birth or who were distinguished for their military
achievements. They were admitted into the enclosure one by one. As each was admitted he was led up to the altar, more like a victim than like one who was taking part in the service,
and he was bound on oath not to divulge what he saw and heard in that place. Then they compelled him to take an oath couched in the most terrible language, imprecating a
curse on himself, his family, and his race if he did not go into battle where the commanders should lead him or if he either himself fled from battle or did not at once slay any one whom he saw