 It received the honorary title of city with a presidential decree on June 26, 1955.There is evidence of a settlement dating back to Roman penetration of Gaul, where it is thought to have been used as a "castrum".The Latin form of the name Codogna was "Cothoneum" and is believed to derive from the name of the consul Aurelius Cotta, conqueror of the Gauls, who inhabited these lands at that time.