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Indian students participate in a procession with portraits of Nelson Mandela, Mahatma Gandhi and Martin Luther King to celebrate Mandela's 95th birthday in New Delhi, India, Thursday, July 18, 2013. Events across the world marked Mandela's 95th birthday, a milestone capped by news that the former president's health was improving after fears that he was close to death during ongoing hospital treatment. (AP Photo/ Saurabh Das)