the Forum so much that a roadway was put through the Arch for the first time. So much debris and silt eroded from the surrounding hills that the arch was embedded to the base of the columns. The damage wrought by wheeled medieval and early modern traffic can still be seen on the column bases, above the bas-reliefs of the socles. During the Middle Ages repeated flooding of the low-lying Forum washed in so much additional sediment and debris that when Canaletto painted it in 1742, only the upper half of the Arch showed above ground. The well-preserved condition of the Arch owes a good deal to its having been incorporated into the structure of a Christian church, given 1199 by Pope Innocent III to the church of Ss. Sergio and Bacco. Half the Arch belonged to the Cimini family, who is also attributed for the preservation of the structure (Claustrum Cimini). The stronghold included a tower placed on top of the Arch itself. When the church was refounded elsewhere, the arch remained ecclesiastical property and was not demolished for other construction. Dedicatory inscription The inscription is one of the most significant characteristics of the arch. The dedicatory inscription on the arch reads: IMP · CAES · LVCIO · SEPTIMIO · M · FIL · SEVERO · PIO · PERTINACI · AVG · PATRI PATRIAE PARTHICO · ARABICO · ET PARTHICO · ADIABENICO · PONTIFIC · MAXIMO · TRIBUNIC · POTEST · XI · IMP · XI · COS · III · PROCOS · ET IMP · CAES · M · AVRELIO · L · FIL · ANTONINO · AVG · PIO · FELICI · TRIBUNIC · POTEST · VI · COS · PROCOS · (P · P · OPTIMIS · FORTISSIMISQVE · PRINCIPIBUS) OB · REM · PVBLICAM · RESTITVTAM · IMPERIVMQVE · POPVLI · ROMANI · PROPAGATVM · INSIGNIBVS · VIRTVTIBVS · EORVM · DOMI · FORISQVE · S · P · Q · R Imp(eratori) Caes(ari) Lucio Septimio M(arci) fil(io) Severo Pio Pertinaci Aug(usto) patri patriae Parthico Arabico et Parthico Adiabenico pontific(i) maximo tribunic(ia) potest(ate) XI imp(eratori) XI, co(n)s(uli) III proco(n)s(uli) et imp(eratori) Caes(ari) M(arco) Aurelio L(ucii) fil(io) Antonino Aug(usto) Pio Felici tribunic(ia) potest(ate) VI co(n)s(uli) proco(n)s(uli) (p(atri) p(atriae) optimis fortissimisque principibus) ob rem publicam restitutam imperiumque populi Romani propagatum insignibus virtutibus eorum domi forisque S(enatus) P(opulus) Q(ue) R(omanus). In English: "To the emperor Caesar Lucius Septimius