It's impossible to answer your question because you never stated what you mean by "they". People? Causes? Events?
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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.
1453 is the year of the final collapse of the Roman empire. It is the year that Constantinople fell to the Ottoman Turks.
The influx of Eurasian peoples who overwhelmed the defences of the Empire.
Roman*
the final collapse was due to worsening internal problems, the separation of the western empire from the wealthier eastern empire, and increasing outside invasions.
The Middle Ages began after the collapse of the Roman Empire.
The Dark Age.
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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.
1453 is the year of the final collapse of the Roman empire. It is the year that Constantinople fell to the Ottoman Turks.
because it got tired
the final collapse was due to worsening internal problems, the separation of the western empire from the wealthier eastern empire, and increasing outside invasions.
The influx of Eurasian peoples who overwhelmed the defences of the Empire.
Charlemagne united most of Western and Central Europe under the Carolingian Empire, which was the first new empire in Europe after the collapse of the Western Roman Empire.