The 'Dark Ages' were between the 5th and 14th centuries, lasting 900 years. The timeline falls between the fall of the Roman Empire and the Renaissance. It has been called the 'Dark Ages' because many suggest that this period saw little scientific and cultural advancement.
Well, what is considered to be a "Dark Age" is a period with little lack of culture and scientific advancement. Life during the dark ages was considered to be harsh and uncomfortable, basically not a good period in time. Especially to live in.
