[1] There is debate about when the arch was built,[2] but current research that accepts the inscription as evidence (27 BC–AD 14)[3] favours a date during the reign of emperor Augustus.

It was later reconstructed by emperor Tiberius to celebrate the victories of deceased general Germanicus over the German tribes in Rhineland (c. 20–27 AD).

[5] Along with the Roman Theatre of Orange, the Triumphal Arch was inscribed on the UNESCO World Heritage List in 1981 because of its exceptional preservation.

[7] On the northern (outward-facing) facade, the architrave and cornice have been cut back and a bronze inscription inserted, now lost; attempts at reconstructing its text from the placement of cramp holes for the projecting tines of its letters have not been successful.

A Roman foot soldier carrying the shield of Legio II Augusta is seen on the north front battle relief.