Presentation at Grand Canyon Bahá'í Conference on Abdu'l-Bahá and the Black Intelligentsia, especially W. E. B. Du Bois; his speech to the NAACP; and reproductions of many newspaper clippings covering his visit to Washington, DC.
Some content of this presentation comes from the paper "‘Abdu’l-Bahá’s 1912 Howard University Speech: A Civil War Myth for Interracial Emancipation," in ‘Abdu’l-Bahá's Journey West: The Course of Human Solidarity,
ed. Negar Mottahedeh (New York: Palgrave Macmillan, 2013); see palgrave.com