“Illustration of a suovetaurilia, a ritual sacrifice made before the start of a military offensive. At the bottom, a pig and a sheep are being led to the sacrificial altar. The ox which was also destined for sacrifice cannot be seen in this view....
"The triumphal Arch of Constantine was erected next to the Colosseum in AD 315 to commemorate Constantine's victory over Maxentius three years earlier." (p.149); "One of four reliefs from a monument erected by the emperor Commodus...
