That influx of conquered peoples and lands changed the structure of the Roman government.
Emperors moved the capital away from the city of Rome, too.
This is easily the argued question about the fall of Rome.
The Roman Empire lasted over a thousand years and represented a sophisticated and adaptive civilization.
The barbarians, which is a term that covers a varied and changing group of outsiders, were embraced by Rome, who used them as suppliers of tax revenue and bodies for the military, even promoting them to positions of power.
But Rome also lost territory and revenue to them, especially in northern Africa, which Rome lost to the Vandals at the time St. At the same time the Vandals took over the Roman territory in Africa, Rome lost Spain to the Sueves, Alans, and Visigoths.The phrase "the Fall of Rome" suggests that some cataclysmic event ended the Roman Empire which had stretched from the British Isles to Egypt and Iraq.But at the end, there was no straining at the gates, no barbarian horde that dispatched the Roman Empire in one fell swoop.The loss of Spain meant Rome lost revenue along with the territory and administrative control, a perfect example of the interconnected causes leading to Rome's fall.That revenue was needed to support Rome's army and Rome needed its army to keep what territory it still maintained.In the end, the arrival of Odoacer was but one of many barbarian incursions into the empire.Certainly, the people who lived through the takeover would probably be surprised by the importance we place on determining an exact event and time.This began in the early 4th century with Emperor Constantine, who was actively involved in Christian policy-making.When Constantine established a state-level religious tolerance in the Roman Empire, he took on the title of Pontiff.Although he was not necessarily a Christian himself (he wasn't baptized until he was on his deathbed), he gave Christians privileges and oversaw major Christian religious disputes.He may not have understood how the pagan cults, including those of the emperors, were at odds with the new monotheistic religion, but they were, and in time the old Roman religions lost out.