From the Enc. Brittanica: "also called Ara Pacis Augustae (Latin: “Altar of the Augustan Peace”) shrine consisting of a marble altar in a walled enclosure erected in Rome's Campus Martius by the emperor Augustus and dedicated on Jan. 30, 9 BC. The sculptures on the walls and the altar representing the shrine's dedication ceremonies, scenes from Roman legend, and floral motifs are considered to be among the finest examples of Roman art."