AFRICAN MIRROR REPORTER ZENANI Mandela has delivered a powerful message of hope, to mark what would have been her father’s 102nd birthday and to celebrate International Nelson Mandela Day. Millions around the world have been involved in a variety of humanitarian activities to celebrate International Nelson Mandela. Zenani, who is South Africa’s Ambassador to Argentina, used her special message to also talk about the lessons that she has learned from her father, the 1st president of a democratic South Africa who passed on in 2013. She delivered the message a day after she buried her younger sister, Zindzi, who died…