Johannesburg - The Nelson Mandela Foundation has called on South Africans to participate in the second Nelson Mandela Day to be marked worldwide on the elderly statesman's 93rd birthday on 18 July. "The world has taken a position, including the United Nations, to mark this important day. But what it also means (this year), we are beginning to say everyday people must … [Read more...] about South Africans urged to participate in Mandela Day