The Roman Empire, established in 27 BC by Augustus, was one of the most powerful and enduring empires in history, renowned for its advanced governance, military prowess, engineering marvels, and cultural influence, spanning three continents at its height, transitioning from polytheism to Christianity, and leaving a lasting legacy that profoundly shaped Western civilization before its decline and fall in 476 AD in the West, while the Eastern Roman Empire continued as the Byzantine Empire until 1453 AD.
