Topic: Tell me a short, interesting fact about

One fascinating and little-known fact about the Roman Empire is that Romans used a complex system of road monitoring and repair along their extensive network of roads, known as the Viae Romanae. These roads were so well maintained that they were often in use long after the fall of the empire, with some sections still usable up until the end of the Middle Ages. Dogs wearing metal collars were employed to patrol the roads and report any damage or obstructions to local authorities, ensuring the integrity of these essential transportation routes.