Topic: Tell me a short, interesting fact about

One fascinating and little-known fact about the Roman Empire is that it had its own postal service, known as the "cursus publicus." This system, introduced by Augustus Caesar, allowed for the rapid delivery of messages and small packages across the empire. Messages could travel up to 300 km (186 miles) a day with a team of horses, and all Roman officials, including the emperor, used this service for communication. The "cursus publicus" laid the groundwork for modern postal systems.