FILE- In this Aug. 28, 1963, black-and-white file photo Dr. Martin Luther King Jr. addresses marchers during his "I Have a Dream" speech at the Lincoln Memorial in Washington. Former South African president Nelson Mandela never met with King but the two fought for the same issues at the same time on two different continents. Mandela said in a 1964 speech that he was prepared to die to see his dream of a society where blacks and whites were equal become reality. King was killed by an assassin's bullet while working for that same dream.(AP Photo/File)

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