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.

At length the last reserves had to be brought up, and to such an extremity of toil and danger had matters come that the Roman cavalry dismounted, and, leaving their horses in charge, made their way over piles of armour and heaps of slain to the front ranks of the infantry.