Starting in 66 BC, the Romans engaged in a series of battles with the Parthian Empire (ancient Iran) known as the Roman-Parthian Wars. When peace was declared in 202, this triumphal arch was erected at the Roman Forum the following year. Its namesake was Septimius Severus. He was a Roman emperor from 193 until 211. The monument measures 75.5 feet tall and 82 feet wide. Years later, the conflicts with Parthia were renewed until the empire was finally destroyed in 226.