The death of Nelson Mandela inevitably makes one think about the death of apartheid, the cruel and poisonous system of institutionalised racism he helped to topple. But all too few today remember exactly what apartheid was or the toll it took on everyone involved. I spent 3 months in South Africa and Zimbabwe in the early 1980s and have written about my experiences of the time in my latest column for the Ottawa Citizen and other Postmedia papers.