Topic: Tell me a short, interesting fact about

One interesting fact about the Roman Empire is that it was the first uniquely secular civilization in history. Unlike many ancient civilizations, the Roman Empire did not have a state religion. Instead, it allowed multiple religions to coexist, including Christianity, long before it became the official religion of the empire in the 4th century AD. This religious tolerance was a significant factor in Rome's ability to maintain a diverse and expansive empire for so many centuries.