What name is given to the period between 250 A.D and 1000 A.D?

The period between 250 A.D. and 1000 A.D. is often referred to as the Early Middle Ages or the Dark Ages in European history. This era followed the decline of the Roman Empire and was characterized by significant social, economic, and cultural changes, including the spread of Christianity and the formation of early medieval kingdoms. It is called the "Dark Ages" due to the perceived lack of historical records and cultural achievements compared to the preceding classical period.