Ab urbe condita

Armed men mounted on chariots and baggage wagons came on with a thunderous noise of horses and wheels, and the horses of the Roman cavalry, unaccustomed to that kind of uproar, became uncontrollable through fright; the cavalry, after their victorious charges, were now scattered in frantic terror; horses and men alike were overthrown in their blind flight.

Even the standards of the legionaries were thrown into confusion, and many of the front rank men were crushed by the weight of the horses and vehicles dashing through the lines.