The Mandela Effect - Alternate Memories, Ever had that feeling when you hear something, like a celebrity dying, and was sure it had happened before? When that happens to a group of people, it has a name - The Mandela Effect. It's called that because there are many who were sure Nelson Mandela died in the 1980's and not in 2013. Welcome to Alternate Memories, where these and more are documented, discussed and puzzled over. Remember - as you read about them more and more, some will hit you as being ridiculous, and others as spookily accu.