🔺 REGNAL, CONSULAR, AND IMPERIAL EXPANSION.
“Therefore, how much Rome has advanced under these three types of rule - that is, regnal, consular, and imperial - I shall briefly sketch.
(Kingdom)
Under seven kings through 243 years, Roman imperium did not advance beyond Portus and Ostia, within 18 miles from the gates of the city of Rome, seeing that she was as yet small and founded by shepherds, while neighboring cities were hemming her in.
(Republic)
At the same time, through 467 years under consuls, among whom there sometimes were dictators, too, Italy was occupied as far as beyond the Po, Africa was subjugated, the Spains added, and Gaul and Britain made tributaries. As for Illyricum, Histri, Libyrni, and Dalmatae were mastered; it passed to Achaea; Macedonians were subjugated; with Dardanians, Moesians, and Thracians it warred; and it reached all the way to the Danube. After Antiochus had been expelled, Romans first set foot in Asia; when Mithridates had been conquered, his kingdom was occupied; Armenia Minor, which he likewise had held, was obtained by arms; a Roman army reached Mesopotamia; a treaty was initiated with the Parthians; against Carduenians and Saracens and Arabs it warred; all of Judaea was conquered; Cilicia and Syria came into the power of the Roman people.
Egypt's kings became allies.
(Empire)
Moreover, under the imperatores, through 407 years, while many principes were directing the diverse fortune of the state, the Maritime Alps, Cottian, Raetian, and Norican Alps, the Pannonias, and the Moesias accrued to the Roman world, and the entire bank of the Danube was reduced to provinces. All Pontus, Armenia Major, all Oriens, with Mesopotamia, Assyria, Arabia, and Egypt, passed under the jurisdiction of Roman imperium.”
Festus, Breviarum



