[Kazanne]

Been meaning to ask this for ages . This is a serious question , not to annoy or piss anyone off , I genuinely want to know as I feel ignorant about the subject,I have seen the love etc poured out for Nelson Mandela ,I ashamedly know nothing about him just snippets from the news etc but I have also over the years heard people scorn him and call him a terrorist,why do people say that , is there a reason? as he seems to be widely adored , a summary on him would be great . I know I could probably read a book but haven't got the time just would like to hear roughly what he did.