How does the ara pacis embody the political context of the roman early imperial period?

The Ara Pacis Augustae is an altar in Rome devoted to Pax, the Roman goddess of Peace. The memorial was specially made by the Roman Senate on July 4, 13 BC to integrity the homecoming of Augustus to Rome after his three years in Gaul and Hispania and on January 30, 9 BC, it was sanctified. This embodies the commemoration of the emperor's achievements.

answer; i believe that the correct answer is (chronological order);