under which it was developed as a major military and naval base. The Romans renamed it Dyrrachium (Greek: Δυρράχιον / Dyrrhachion). They considered the name Epidamnos to be inauspicious because of its wholly coincidental similarities with the Latin word damnum, meaning "loss" or "harm". The meaning of Dyrrachium ("bad spine" or "difficult ridge" in Greek) is unclear, but it has been suggested that it refers to the imposing cliffs near the city. Julius Caesar's rival Pompey made a stand there in 48 BC before fleeing south to Greece. Under Roman rule, Dyrrachium prospered; it became the western end of the Via Egnatia, the great Roman road that led to Thessalonica and on to Constantinople. Another lesser road led south to the city of Buthrotum, the modern Butrint. The Roman emperor Caesar Augustus made the city a colony for veterans of his legions following the Battle of Actium, proclaiming it a civitas libera (free town).
In the 4th century, Dyrrachium was made the capital of the Roman province of Epirus nova. It was the birthplace of the emperor Anastasius I in c. 430. Sometime later that century, Dyrrachium was struck by a powerful earthquake which destroyed the city's defenses. Anastasius I rebuilt and strengthened the city walls, thus creating the strongest fortifications in the western Balkans. The 12 m (36 ft)-high walls were so thick that, according to the Byzantine historian Anna Komnene, four horsemen could ride abreast on them. Significant portions of the ancient city defenses still remain, although they have been much reduced over the centuries.
Like much of the rest of the Balkans, Dyrrachium and the surrounding Dyrraciensis provincial suffered considerably from barbarian incursions during the Migrations Period. It was besieged in 481 by Theodoric the Great, king of the Ostrogoths, and in subsequent centuries had to fend off frequent attacks by the Bulgarians. Unaffected by the fall of the Western Roman Empire, the city continued
