http://www.octobergallery.com -The term “blackstream” was used by Black artists in the 1900s who were denied admission to the art mainstream. More recently, fine art appraiser Edward S. Spriggs of Atlanta, Georgia brought the term “blackstream” to our attention. Feeling there was a need to identify this important time of formative awareness of, belief in and commitment to African-American art, we coined the phrase BlackStream Renaissance.
source