Burnum was a Roman Legion camp and town. It is located 2.5 km north of Kistanje. The remains include a praetorium, the foundations of several rooms, the amphitheatre and the aqueduct.
It is assumed that Burnum originates from the year 33 BC, but it is more likely that it was established a few decades later. Several Roman legions were located there in succession, and the first one was Legio XX Valeria Victrix from the beginning of the Pannonian uprising (Bellum Batonianum) in AD 6-9. The reason for its location was the need for the control of traffic around the Krka River. Building was initiated by the Roman governor for Dalmatia Publius Cornelius Dolabella and continued by the Emperor Claudius.
The camp gained its final shape during the reign of Claudius around 50 AD. Legio XI Claudia Pia Fidelis left the camp some time between AD 42 and 67, probably AD 56-57 and was succeeded by Legio IIII Flavia Felix.
According to some sources, a rebellion of Lucius Arruntius Camillus Scribonianus against the emperor Claudius in AD 42 was started at this camp as well. After the last Roman legions had left the camp, it developed into an urban settlement.
The camp was completely destroyed when the emperor Justinian attempted to take it back from the Ostrogoths in the 6th century.
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.