Staff from Johannesburg City Parks and dignitaries cut a cake as they celebrate Nelson Mandela's 94th birthday at the Johannesburg City Parks Mandela Day celebrations where the 94th tree was planted in Thokoza Park, Soweto, 18 July 2012. The tree was planted adjacent to the tree planted by Mandela in 2008. Mandela Day encourages South Africans to pledge 67 minutes of their time to contribute to a worthy cause. Picture by Michel Bega

Pupils from the Lakeview Full Service Primary School enjoy cup cakes provided by Johannesburg City Parks as the City Parks celebrate Mandela Day by planting the 94th tree at Thokoza Park in Soweto, 18 July 2012. The tree was planted adjacent to the tree planted by Mandela in 2008. Mandela Day encourages South Africans to pledge 67 minutes of their time to contribute to a worthy cause. Picture by Michel Bega

A child from the Lighthouse Pre-school runs in-front of a happy birthday sign painted for Nelson Mandela on his 94th birthday at the Constitution Hill, 18 July 2012, in Johannesburg. The children spent the day at Constitution Hill as part of Mandela Day learning about Mandela's time when he was detained at the Old Fort Prison during the Rivonia Trial. Mandela Day encourages South Africans to pledge 67 minutes of their time to contribute to a worthy cause. Picture by Michel Bega

Melinda Bam, Miss South Africa helps Sibusiso Sebolao a grade two pupil at Batsogile Primary School in Soweto to fit a shoe which was donated to the school, 18 July 2012.Enver Surty , deputy minister of education and LeadSA attended the special happy birthday song for Tata Madiba's 94th birthday.

Children from Batsogile Primary school, Pimville in Soweto holding a banner with a happy birthday message to Madiba, 18 July 2012. Enver Surty, Deputy Minister of Education and Lead SA attended the school for Special happy birthday song for Madiba's 94th birthday. Picture by Nigel Sibanda

Gareth Cliff, radio personality speaks to Nicolene, at a Mandela day event held at the Headway foundation, Hyde Park, 18 July 2002. Claude had substantial brain damage after a car accident in 2009. Headway cares for patience with brain damage. Picture by Refilwe Modise

Children at Twilight House enjoy Mandela day in Hillbrow, 18 July 2012. The children at Twilight house were showered with gifts and treats by The Citizen, Food lovers market and Dischem-Nicolway. Picture by Refilwe Modise