Topic: Tell me a short, interesting fact about

One fascinating fact about the Roman Empire is that its army used a complex system of road networks known as the "Roman Roads." Engineered to support the political self-sufficiency of the Empire, these roads connected cities, villages, and military camps, stretching approximately 80,000 kilometers (about 50,000 miles) across Europe, Asia, and Africa. The roads were built with such precision that in many cases, they have remained in use for over two millennia, serving as the basis for modern road systems. One remarkable example is the Via Appia, built in 312 BC, and which remains passable today.