Diver Sammy Lee, the first American to win gold medals in platform diving in consecutive Olympic games, was also among the country's earliest "cultural ambassadors."
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Susan Glisson, former director of the William Winter Institute for Racial Reconciliation at the University of Mississippi, facilitates discussions on slavery and race.
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The United Kingdom Independence Party's "Breaking Point" EU referendum campaign poster was deemed so offensive and reminiscent of Nazi propaganda that even the official Leave campaign condemned it.
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