When the Roman Empire collapsed, it had shrunk to the city now called Istanbul, then called Constantinople. The Roman Empire collapsed when the people stopped defending the borders. It stopped making immigrants learn the language and obey the laws. As long as they paid the taxes, it did not care what they did. Then one day Pippin of France announced he was not going to pay taxes to Constantinople any more. With that, not only did the western part of the empire stop paying taxes, but much of the eastern empire stopped paying taxes. When the Arabs conquered Egypt and North Africa, they ended the high taxes to Constantinople. No army existed to fight to regain it. The same story continued.
So when Rome got sloppy and refused to stay in charge, it fell. It was a little at a time. It was complete in 1453.
The Middle Ages began after the collapse of the Roman Empire.
Era of decline upon the collapse of the roman empire is called Fall of Rome
Nero's actions had nothing at all to do with the collapse of the Roman empire. He ruled roughly 300 years before the collapse.
The Eastern Roman Empire. It became the Byzantine empire after the collapse of the Western Roman Empire.
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barberians
The collapse wouldn't have happened if the Roman Empire wasn't attacked by all sides.
1453 is the year of the final collapse of the Roman empire. It is the year that Constantinople fell to the Ottoman Turks.
The Roman empire became too big and the people outside of the Roman empire started to attack. From then on out, the empire just continued to collapse.
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The Dark Age.
The fall of the Roman Empire.