One of the four capitals during the Tetrarchy period
The capital of the entire Roman Empire
The largest city in the Roman Empire
The most populated city in the Roman Empire
Answer
Trier was one of the four capitals of the Roman Empire during the Tetrarchy period in the late 3rd and early 4th centuries. It was renamed Augusta Treverorum by the Romans after they conquered it.
Discovering the Treasures of Trier: A Quiz Journey through Germany's Historic Gem