certainty to Trajan and also to fix its date. The following text is on the first series of fistulae: This group can be dated between 97 AD and 99 AD because the epithet "Germanicus" was acquired after his victory in the wars against the Germans. On the second series is: This group is dated 114-5 AD as the attribute "Dacicus" indicates his victory in the two Dacian wars in 106 AD, but the attribute "Parthicus" is not present, which he received only in 116 AD after victory over the Parthians. In support of these dates are other archaeological data, such as the building technique in opus mixtum, typical of the Trajanic age. References Trajan T Archaeological sites in Lazio