Topic: Tell me a short, interesting fact about

One interesting fact about the Roman Empire is that it was the first to established a universal postal system, known as "cursus publicus". This network of roads, mounted post horses, and relay stations connected Rome with cities and provinces across its vast empire, allowing for rapid communication over long distances. Messages could travel around 200 miles (320 km) in a day, making it one of the fastest means of travel and communication in the ancient world.