Empires come and empires go. None of them has lasted forever. But the roman empire seems to be the one that has lasted the longest. From 27 BC to 1453 AD, the Roman empire lasted for a whopping total of 1,480 years.
The emperor Diocletian was the one to suggest that the massive empire could be managed better and more easily by making them into two empires. Thus the empire was divided into East and West. The West dissolved in 476 AD The Eastern Roman empire continued ahead even after 476 AD and came to be known as the Byzantine Empire in later days.
Based on the Guinness Book of World Records, the Roman Empire holds the record for the most enduring empire to date. It is still a debate when was the formal beginning date of this empire but most of the historians believe that it started in 27 BC started with the Republic.
The Eastern Empire was the last after their defeat by the Ottoman Turks in 1453. The Roman Empire reigned for almost 2000 years showing their strength and power.
The creation of the walls surrounding the capital city made a huge contribution to the success of this empire by keeping it safe from invaders. It might be one of the greatest strategies Roman Empire leaders had done to secure their people and power for thousands of years.