ccording to the Greek historian Polybius (second century b.C.) and the Roman historian Titus Livius (59 a.C. - 17 d.C.) this famous battle took place in the second half of December 218 a.C., on a cold morning while rain was falling mixed with wet snow.|
In 1982 two professors of the university of Pavia, Giuseppe Marchetti and Pier Luigi Dall' Aglio, published (Acts of Geological Studies of the University, vol. XXX, pages141-160) the following - papaphrased - revolutionary theory.
The physical layout of the territory where the battle took place and the surrounding area around Piacenza, were very different from today.
At that time the Trebbia river, according to the two professors, took a sharp bend to the East after Rivergaro, and thus joining the Po River in the vicinity of
Mortizza (see Map)
on the East side of Piacenza instead of the West of the city as it does today (see map above).
This would explain why, as described by the two historians, after crossing the river to face Hannibal, Sempronius retreated in a direct line "recto itinere" to Piacenza from the left banks of the Trebbia without having to cross the river again and Scipio, still at the base camp on the right banks, had to cross it on rafts to rejoin him in the city.
The notes are taken from an article in the daily newspaper LIBERTĄ of Piacenza, dated 11 of December, 2000.