I think it's considered innacurate since there were still technological developments made during then (probably more peacetime/scientific advancements in the Middle East (due to large empires) and some wartime advancements in Europe due to all of the fighting).
There've also been several "Dark Ages":
- 2200BC (many agrarian societies declined)
- 1200BC (tin supplies ran out, and the start of the iron age. Eygpt, Greece and other cultures declined. According to some, the Phonecians sailed as far as England to find tin.)
- 500AD (The era of Great Migrations into Europe. These peoples were less advanced than Rome, so Europe sort of had to 'start over').
I've seen "Dark Ages" also defined as a decline in "The Arts" (literature, philosophy, culture), which I guess would be true if there's no large empire to keep the peace. Dark Ages tend to last a few centuries just as a Golden Age might also last a few centuries (they're economic opposites).
There've also been several "Dark Ages":
- 2200BC (many agrarian societies declined)
- 1200BC (tin supplies ran out, and the start of the iron age. Eygpt, Greece and other cultures declined. According to some, the Phonecians sailed as far as England to find tin.)
- 500AD (The era of Great Migrations into Europe. These peoples were less advanced than Rome, so Europe sort of had to 'start over').
I've seen "Dark Ages" also defined as a decline in "The Arts" (literature, philosophy, culture), which I guess would be true if there's no large empire to keep the peace. Dark Ages tend to last a few centuries just as a Golden Age might also last a few centuries (they're economic opposites).