Has Hip-Hop Reached Middle Age?

On August 11, 1973, New York DJ Clive "Kool Herc" Campbell threw the first in a series of parties that would later be credited as the birthplace of hip-hop.  NPR's Dart Adams commemorates the genre's 40th anniversary with an in-depth look at the trajectory of the American-born art form.

Clive "Cool Herc" Campbell (right) is widely credited as a founder of the hip-hop movement.

Credit NPR