When did the dark ages begin and end?

The Dark Ages, also known as the Middle Ages, lasted from 6th to 14th century, and they refer to an era of intellectual darkness following the fall of the Roman Empire, and before the rise of the Italian Renaissance in the 14th century. 

Opposition to the nra came to a head in 1935, when the conservative supreme court declared the agency unconstitutional, claiming the nra gave the executive branch regulatory powers that belonged exclusively to congress. this decision began a series of court decisions that overturned key elements of the new deal.