In 1936 Orson Welles directed a celebrated all-black production of Macbeth that was hailed as a breakthrough for African Americans in the theater. For over a century, black performers had fought for the right to perform on the American stage, going all the way back to an 1820s Shakespearean troupe that performed Richard III, Othello, and Macbeth, without relying on white patronage. "Macbeth" in Harlem tells...