How was the crisis of the Roman Empire manifested?

In the 4th century, the Roman Empire lived out the last years of its greatness, which already in the 5th century led to its collapse. The main reasons for the collapse of the empire were:

1) Constant uprisings in the captured regions.

2) The split of the Roman Empire into western and eastern in 395.

3) The activation of the barbarian tribes of Europe led to constant clashes at the borders.

4) The invasion of the Huns in the 5th century brought the entire western empire to its knees.

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