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.
He also instituted a yearly sacrifice to the goddess Fides and ordered that the Flamens should ride to her temple in a hooded chariot, and should perform the service with their hands covered as far as the fingers, to signify that Faith must be sheltered and that her seat is holy even when it is in men's right hands.
There were many other sacrifices appointed by him and places dedicated for their performance which the pontiffs call the Argei. The greatest of all his works was the preservation of peace and the security of his realm throughout the whole of his reign.
Thus by two successive kings the greatness of the State was advanced; by each in a different way, by the one through war, by the other through peace. Romulus reigned thirty-seven years, Numa forty-three. The State was strong and disciplined by the lessons of war and the arts of peace.