Acinipo was a city about 20 kilometers from Ronda, believed to have been founded by retired soldiers from the Roman legions more than 2,000 years ago. The remaining ruins include a Roman theater still in use today.
Some historians assert that Acinipo was created after the battle of Munda (45 BC), fought between the armies of Julius Caesar and the army of Pompey's two sons, Gnaeus and Sextus. To Caesar, Munda was supposed to be a mop-up action after Pompey's main forces were defeated in Greece. But Munda was no mop-up exercise. Tens of thousands of Romans were killed on both sides; there was no decisive victory for Caesar's armies; and one of Pompey's sons, Sextus, fled to fight another day as a famous rebel pirate against Caesar's successor, Augustus.
Some Spanish historians state that Munda is the Roman name for Ronda, where the battle of Munda may have been fought. According to Pliny, the battle of Munda was fought in Osuna, about 50 km north of Ronda in the province of Seville. But there is general agreement that Acinipo was created for retired veterans of Caesar's legions, while Arunda (Ronda) would be a separate Roman outpost, perhaps created before the Munda conflict for the veterans of Pompey's legions.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.