What event is considered the end of the ancient world?

It is customary to study history by periods. The longest historical period is the Ancient World. This period covers time from the prehistoric period to the so-called Middle Ages. The period of the Ancient World also includes the era of Antiquity. There are several dates that are considered to be the end of this historical era. But most researchers take 476 as a starting point for a new historical medieval era, since this very year was the year of the fall of the great civilization of the Western Roman Empire.