Despite the armor being commonly associated with the Romans, the armor was used by other civilizations before the Romans. The armor was originally used by the Parthians and possibly the Dacians, Scythians, or Sarmatians before the Romans used it. Some sets of armor similar to the "lorica segmentata" dating back to the 4th century BC have been found in archaeological sites located in the steppe. The Dendra Cuirass is a set of armor similar to the "lorica segmentata" that has been dated back to the 15th century BC. The armor was first used in the early 1st century. Although, the exact time in which the Romans adopted the armor remains unknown. Some say it was after Crassus' defeat at Carrhae in 53 BC. Others say the armor was adopted in 21 AD after the Revolt of Julius Sacrovir and Julius Florus. One form of the armor was used as early as 9 BC. Because the soldiers at the Battle of Teutoberg Forest wore the "lorica segmentata", we can conclude the armor must have been in use before 21 AD. Around the middle of the third century the "lorica segmentata" fell out of favor with the Roman army. Although, it did remain in use during the Late Roman Empire. The armor was still around in the 4th century. Soldiers wearing the "lorica segmentata" were depicted on the Arch of Constantine, a monument erected in 315. However, it has been argued that these depictions are from an earlier monument by Marcus Aurelius, from which Constantine incorporated portions into his Arch. The latest known use of the armor was in the 4th century.