TheConversationUS, 
“Tell them about the dream, Martin,” gospel singer Mahalia Jackson urged Dr. King, “tell them about the dream.” And #OTD in 1963 he did - setting aside the prepared remarks for the March on Washington, and starting to ad lib a speech that still rings from the “prodigious hilltops of New Hampshire” to “the curvaceous slopes of California” to “every hill and mole hill of Mississippi.” https://theconversation.com/gospel-singer-mahalia-jackson-made-a-suggestion-during-the-1963-march-on-washington-and-it-changed-a-good-speech-to-a-majestic-sermon-on-an-american-dream-212067 @blackmastodon @histodons #histodons