Before it was located on the National Mall and was still an independent museum on Capitol Hill, the Museum of African Art included both African and African-American art in its collection. That changed in 1979, when it became the Smithsonian National Museum of African Art, focused on Africa, not the American diaspora. This year marks the 50th anniversary of the museum, and to celebrate it the museum has returned to its roots, supplementing its own collection with works by African-American artists in the collection of Camille and William Cosby, Jr.

Yes, that Bill Cosby.