What did the fall of the western empire help bring about the middle ages in 476?

In the years following 476 A.D., various Germanic peoples conquered the former Roman Empire in the West (including Europe and North Africa), shoving aside ancient Roman traditions in favor of their own. The negative view of the so-called “Dark Ages” became popular largely because most of the written records of the time (including St. Jerome and St. Patrick in the fifth century, Gregory of Tours in the sixth and Bede in the eighth) had a strong Rome-centric bias.

Explanation:

one of the negative side effects were the economic losses the events of september 11th caused. many, many people lost their jobs as a result of a downturn in the economy after the terrorist attacks.

d is the answer. leo should include the source.