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.
The men shouted to one another, “Hurry on, standard-bearer!” “Follow up, soldiers!” to the great gratification of their leaders. They reached Algidus at midnight, and on finding that they were near the enemy, halted.
The Dictator, after riding round and reconnoitring as well as he could in the night the position and shape of the camp, commanded the military tribunes to give orders for the baggage to be collected together and the soldiers with their arms and palisades to resume their places in the ranks.
His orders were carried out. Then, keeping the formation in which they had marched, the whole army, in one long column, surrounded the enemies' lines. At a given signal all were ordered to raise a shout; after raising the shout each man was to dig a trench in front of him and fix his palisade.
As soon as the order reached the men, the signal followed. The men obeyed the order, and the shout rolled round the enemies' line and over them into the consul's camp. In the one it created panic, in the other rejoicing.
The Romans recognised their fellow-citizens' shout, and congratulated one another on help being at hand. They even made sorties from their outposts against the enemy and so increased their alarm.