South African President Nelson Mandela takes the oath 10 May 1994 during his inauguration at the Union Building in Pretoria. Mandela was elected president at the first session of the country's post-apartheid parliament, 09 May 1994 in Cape Town. South Africans had voted 27 April 1994 in the country's first democratic and multiracial general elections. AFP PHOTO / WALTER DHLADHLA

ANC leader Nelson Mandela casts his vote at Ohlanga High School hall in Inanda. 10 miles (15 km) north of Durban on Wednesday, April 27, 1994, for South Africa's first all-race elections. Mandela is strongly favored to become South Africa's first black President after results are announced later that week. (AP Photo/Peter Dejong)

President-Elect Nelson Mandela, left, and President F.W. de klerk stand at attention as they listen to the country's two national anthems outside parliament in Cape Town Monday, May 9, 1994. Mr. Mandela is to be formally inaugurated as the country's first black president on Tuesday. (AP Photo/Greg English)

(FILES) -- A file photo taken on April 22, 2009 shows former South African President Nelson Mandela waving after casting his vote in South Africa's general elections in Johannesburg. AFP PHOTO / ALEXANDER JOE

(FILES) -- A file photo taken on April 27, 1994 shows African National Congress (ANC) President Nelson Mandela smiling as he casts his vote in Oshlange, a black township near Durban, during South Africa's first democratic and all-race general elections. AFP PHOTO /

President-elect Nelson Mandela stands to attention in front of the parliament in Cape Town Monday, May 9, 1994 while the National Anthems are played. He will be sworn in as South Africa's first black state President in Pretoria Tuesday. (AP Photo/Adil Bradlow)

Former South African President, Nelson Mandela, during a gathering held to honour the late writer of his autobiography, Anthony Sampson, in Johannesburg, Tuesday, Feb. 8, 2005. Last week Mandela launched an appeal to the world's richest nations to help with debt relief to Africa (AP Photo/Themba Hadebe)

(FILES) -- A file photo taken on August 20, 2008 shows former South African President and Nobel peace prize laureate Nelson Mandela joining guests at his home in Cape Town, to celebrate his 90th birthday. AFP PHOTO/RODGER BOSCH

(FILES) South African anti-apartheid leader and African National Congress (ANC) member Nelson Mandela waves to the press as he arrives at the Elysee Palace on June 7, 1990 in Paris. Nelson Mandela, who was released from jail on 11 February 1990, is in Paris for a two-day official visit. AFP PHOTO

African National Congress (ANC) leader Nelson Mandela at a press conference on Thursday, March 31, 1994 in Johannesburg in which he commented on South African President F.W de Klerk's declaration of the state of emergency in KwaZulu and Natal province. (AP Photo/Peter Dejong)

President of the African National Congress Nelson Mandela, center, and his wife Winnie, give a clenched fist salute in an open car, to the thousands of ANC supporters that attended a daylong rally to celebrate the 80th anniversary of the establishment of the ANC, Wednesday, Jan. 8, 1992, Bloemfontein, South Africa. (AP Photo/Adil Bradlow)

South African black leader Nelson Mandela gestures as he answers reporters' questions at the Japan National Press club Tuesday, Oct. 30, 1990 in Tokyo. (AP Photo/Tsugufumi Matsumoto)

African National Congress President Nelson Mandela, center, leads unidentified members of the Patriotic Front, an alliance of black groups that support the ANC, into a meeting on Thursday, Jan. 13, 1994 in Johannesburg, South Africa. The group is meeting to discuss strategy for the upcoming April 27 national elections. (AP Photo/David Brauchli)

African National Congress (ANC) President Nelson Mandela wearing leopard skin traditional clothes, salutes the crowd, 21 March 1994, at a rally to commemorate the 34th anniversary of the massacre of 69 black demonstrators by the police in Sharpville, south of Johannesburg. South Africans will vote 27 April 1994 in the country's first democratic and multiracial general elections. AFP PHOTO / WALTER DHLADHLA

Inkatha Freedom Party President, Mangosuthu Buthelezi (left) and African National Congress President, Nelson Mandela (right) break into laughter on March 1, 1994 at a press conference held in Durban, South Africa after their summit meeting earlier that afternoon. (AP Photo/Joao Silva)

African National Congress (ANC) President Nelson Mandela, wearing leopard skin traditional clothes, releases a white dove for peace at a rally to commemorate the 34th anniversary of the massacre of 69 black demonstrators by the police, 21 March 1994, in Sharpville, south of Johannesburg. South Africans will vote 27 April 1994 in the country's first democratic and multiracial general elections. AFP PHOTO / WALTER DHLADHLA

South African President F.W. de Klerk, left, and African National congress President Nelson Mandela exchange pleasantries on Thursday, April 19, 1994 during the singing of agreement to include the Kwazulu black homeland in South Africa's first all-race election. The Zulu leader and his party agreed to end their boycott of April 26-28 elections. (AP Photo/Lynne Sladky)

(FILES) -- A file photo taken on May 10, 1994 shows South African President Nelson Mandela taking the oath during his inauguration at the Union Building in Pretoria. Mandela was elected president on May 9 at the first session of the country's post-apartheid parliament in Cape Town. AFP PHOTO / WALTER DHLADHLA

African National Congress President Nelson Mandela dances as he gets up on stage to deliver his victory address in downtown Johannesburg Monday May 2, 1994. He become the first black president in South Africa's history.(AP Photo/David Brauchli)

ANC leader and symbol of resistance to apartheid, Nelson Mandela, is seen during an interview, a few days since his release from prison after 27 years, at his home in Soweto, near Johannesburg, South Africa. (AP Photo)