Dark-ages meaning

We did it all the time in the Dark Ages.

During the Russian Dark Ages certain clerical errors had crept into the liturgical books Reforms a nd certain peculiarities had been adopted in the ritual.

In the " dark ages " Jews enjoyed neither rights nor privileges; in the 18th century they were still without rights but they had privileges.

Under the later empire agriculture sank into a condition of neglect, in which it remained throughout the Dark Ages.

The chemical knowledge of Egyptian metallurgists and jewellers, he holds, was early transmitted to the artisans of Rome, and was preserved throughout the dark ages in the workshops of Italy and France until about the 13th century, when it was mingled with the theories of the Greek alchemists which reached the West by way of the Arabs.