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Obama And Former Presidents To Attend Mandela Memorial

The world has joined South Africans in mourning and memorializing Nelson Mandela, who died Thursday at age 95. The life of the man known as the '"father of the nation" — the anti-apartheid hero, Nobel Laureate laureate and South Africa's first black president — will be celebrated on Tuesday in Johannesburg, a ceremony that will be attended by many world leaders.

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