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FILE - In this Aug. 28, 1963 file photo, the Rev. Dr. Martin Luther King Jr., delivers his "I Have a Dream" speech in Washington, D.C. King won the 1964 Nobel Peace Prize, recognized for his leadership in the American civil rights movement and for advocating non-violence. This year's winner is set to be announced on Friday, Oct. 6, 2017. (KEYATONE/AP Photo)