Proceedings of the 16th Nelson Mandela Annual lecture delivered by Barack Obama, Johannesburg: [Recorded event] Add to clipboard ZA COM NMFSV-16 Subseries 17-07-2018 Part of Nelson Mandela Annual Lecture [sound/video] 16th Nelson Mandela Annual Lecture delivered by former US President Barack Obama on the 17th of July 2018, Johannesburg. Nelson Mandela Foundation (NMF)