A picture of Nelson Mandela's only meeting with US President Barack Obama now sits on the South African icon's desk, alongside a photo of Muhammad Ali.
Published in February 2011 for the first time, the photograph shows Obama, then a little-known junior Senator, having his one and only meeting with Nelson Mandela, in a hotel room in Washington, DC, in May 2005.
Even the Nelson Mandela Foundation admitted they had “no idea” the two men had ever met – until Obama sent the photograph to Mandela as a gift last year, inscribed with the words, “An inspiration to us all”.
Verne Harris, Mandela's chief archivist, said: "There is no archival record of that meeting that we've been able to locate, apart from this photograph," he said. "The meeting was not part of the schedule, but someone said, 'Madiba, look, you have to meet Senator Obama. He said, 'Great I'm happy to do that.'