by Stephanie SoteriouBuzzFeedBuzzFeed Staff If you didn't know, when a bunch of people are genuinely convinced that something that never happened, well, happened, it is called the Mandela effect. The phenomenon got its name after it was discovered that many people falsely believed that Nelson Mandela was dead several years before he actually died in 2013. Thomas Imo / Getty Images Other examples of false memories that huge groups of people genuinely believe to be real can be found in the form of popular brand logos and names.