[arthurus]

The "Barbarians" did not destroy Rome. They became Romans and extended Roman culture and maintained it until the Mohammedans cut off Europe from trade with the East, primarily papyrus which among other effects rapidly deliterated a generally literate civilization. The Roman Empire fell, or rather evanesced. Roman civilization continued for more than another century.

Mohammed & Charlemagne Revisited: The History of a Controversy by Scott, Emmet (Dec 16, 2011)

[matt1234]

The "Barbarians" did not destroy Rome. They became Romans and extended Roman culture and maintained it

That is true of many barbarian tribes, but not all. Many Germanic and Gothic tribes were more hostile than friendly to the Roman Empire for most of its existence. Rome was sacked by Visigoths in 410.