Negro Digest/Black World after 1966 or so, and there's increasing discussion of "the black aesthetic" and "aesthetics." It's one of the key terms of the era, and that's evident through numerous issues of the magazine.
One of the advantages of having Negro Digest/Black World searchable through Google is the possibility to trace the use of the terms "black aesthetic" and "aesthetics" across dozens of issues. Doing so clarifies just how pervasive the concept(s) had become in a relatively short amount of time.
• Blogging about Black World magazine