Thapsus was established on Ras ed-Dimas, an easily defended promontory on Tunisia's Mediterranean coast. It was near a salt lake. It was about 135 km (84 mi) from the island of Lampedusa and approximately 200 km (120 mi) southeast of Carthage.
During his civil war, Julius Caesar defeated Metellus Scipio and the Numidian king JubaI at the costly 46BC Battle of Thapsus. Caesar exacted a payment of 50,000 sesterces from the vanquished. The victory marked the end of opposition against him in Africa. Thapsus subsequently became a Roman colony in the province of Byzacena. The town's enormous mole may have been begun by the local emperors Gordian I, II, and III, but their reigns were too brief to have finished the work.[3] The construction may have been abandoned partway through; Thapsus was never known as a world-class port and, after the collapse of Thysdrus in the 3rd century, all the area's maritime trade is known to have occurred through the harbors at Sullecthum, Thaenae, Leptis, and Gummi.[4]
Remains
Thapsus's surviving ruins include an amphitheatre and various mosaics. Thapsus was the site of one of the Roman Empire's greatest harbor moles, a huge concrete and stone breakwater extending almost a kilometer from shore; only the first hundred or so meters, however, remain above water.[3]
Hitchner, R., R. Warner, R. Talbert, T. Elliott, S. Gillies. "Places: 324827 (Thapsus)". Pleiades. Retrieved March 8, 2012.{{cite web}}: CS1 maint: multiple names: authors list (link)