Theories Cognitive Psychology Mandela Effect Examples, Origins, and Explanations How masses of people can have the same false memory By Arlin Cuncic, MA Arlin Cuncic, MA Arlin Cuncic, MA, is the author of "Therapy in Focus: What to Expect from CBT for Social Anxiety Disorder" and "7 Weeks to Reduce Anxiety." She has a Master's degree in psychology. Learn about our editorial process Updated on May 01, 2023 Medically reviewed Verywell Mind articles are reviewed by board-certified physicians and mental healthcare professionals. Medical Reviewers confirm the content is thorough and accurate, reflecting the latest evidence-based research. Content is reviewed before publication and upon substantial updates. Learn more. by Steven Gans, MD Medically reviewed by Steven Gans, MD Steven Gans, MD is board-certified in psychiatry and is an active supervisor, teacher, and mentor at Massachusetts General Hospital. Learn about our Medical Review Board Fact checked Verywell Mind content is rigorously reviewed by a team of qualified and experienced fact checkers. Fact checkers review articles for factual accuracy, relevance, and timeliness. We rely on the most current and reputable sources, which are cited in the text and listed at the bottom of each article. Content is fact checked after it has been edited and before publication. Learn more. by Aaron Johnson Fact checked by Aaron Johnson Aaron Johnson is a fact checker and expert on qualitative research design and methodology. Learn about our editorial process Print Verywell / Brianna Gilmartin Table of Contents View All Table of Contents Origins Examples Explanations The Internet The Mandela effect refers to a situation in which a large mass of people believes that an event occurred when it did not. The term was originated in 2009 by Fiona Broome, after she discovered that she, along with a number of others, believed that Nelson Mandela had died in the 1980s (when he actually died in 2013). Looking at the origin of the Mandela effect, some famous examples, as well as some potential explanations for this strange confluence of perceptions can help to shed light on this unique phenomenon. Origins of the Mandela Effect The term "Mandela Effect" was first coined in 2009 by Fiona Broome when she created a website to detail her observance of the phenomenon. Broome was at a conference talking with other people about how she remembered the tragedy of former South African president Nelson Mandela's death in a South African prison in the 1980s. However, Nelson Mandela did not die in the 1980s in a prison—he passed away in 2013. As Broome began to talk to other people about her memories, she learned that she was not alone. Others remembered seeing news coverage of his death as well as a speech by his widow. Broome was shocked that such a large mass of people could remember the same identical event in such detail when it never happened. Encouraged by her book publisher, she began her website to discuss what she called the Mandela Effect and other incidents like it. 1:53 Click Play to Learn More About the Mandela Effect This video has been medically reviewed by Steven Gans, MD. Notable Examples of the Mandela Effect The story of Nelson Mandela is not the only example of this type of false group memory. As the concept of the Mandela Effect grew along with Broome's website, other group false memories began to emerge. Henry VIII Eating a Turkey Leg People had a memory of a painting of Henry VIII eating a turkey leg, though no such painting has ever existed. There have, however, been similar cartoons created. Luke, I Am Your Father If you saw Star Wars: Episode V—The Empire Strikes Back, you probably remember Darth Vader uttering the famous line, "Luke, I am your father." You might be surprised to learn, then, that the line was actually, "No, I am your father." Most people have memories of the line being the former rather than the latter. Mirror, Mirror on the Wall If you watched Snow White and the Seven Dwarfs, you probably remember the line, "Mirror, mirror on the wall, who's the fairest of them all?" You may be shocked to learn, then, that the line actually began with the phrase "Magic mirror on the wall" instead. Oscar Meyer There is some controversy over the spelling of the famous brand of hot dogs, Oscar Mayer weiners. Some people claim to remember the brand being spelled "Meyer" instead of "Mayer" (the correct spelling). Location of New Zealand Where is New Zealand in relation to Australia? If you look at a map, you will see that it is southeast of the country. However, there is a community of people who claim to remember New Zealand being northeast instead of southeast. Berenstein Bears The famous children's book series the "Berenstain Bears" is not immune to the Mandela effect. Many people report remembering the name being the Berenstein Bears (spelled with an "e" instead of an "a"). This is similar to the Oscar Mayer issue and hints at perhaps an underlying cognitive reason for the Mandela Effect instead of parallel realities, as some people believe. Shazaam One of the most well-known examples of the Mandela Effect is the collective memory of a movie called "Shazaam" that starred the actor/comedian Sinbad in the 1990s. In fact, no such movie exists, although there was a children's movie called Kazaam and some other coincidences that could help to explain how this movie became created (or remembered) in many people's minds. Pikachu Many people report remembering Pikachu, a Pokémon character, as having a black-tipped tail. In reality, the character has always had a solid yellow tail. Mickey Mouse Mickey Mouse might be the most famous cartoon character in the world, but even Disney's famous mouse is often misremembered in the minds of fans. People often report the character wearing suspenders when he does not. Explanations for the Mandela Effect So why would this effect even happen? Let's explore. False Memories A more likely explanation for the Mandela effect involves false memories. Before we consider what is meant by false memories, let's look at an example of the Mandela effect as it will help us to understand how memory can be faulty (and may lead to the phenomenon that we are describing). Who was Alexander Hamilton? Most Americans learned in school that he was a founding father of the United States of America but that he was not a president. However, when asked about the presidents of the United States, many people mistakenly believe that Hamilton was a president. Why? If we consider a simple neuroscience explanation, the memory for Alexander Hamilton is encoded in an area of the brain where the memories for the presidents of the United States are stored. The means by which memory traces are stored is called the engram and the framework in which similar memories are associated with each other is called the schema. So when people try to recall Hamilton, this sets off the neurons in close connection to each other, bringing with it the memory of the presidents. (Though this is an oversimplified explanation, it illustrates the general process.) When memories are recalled, rather than remembered perfectly, they are influenced to the point that they can eventually become incorrect. In this way, memory is unreliable and not infallible. Confabulation Confabulation involves your brain filling in gaps that are missing in your memories to make more sense of them. This isn't lying, but rather remembering details that never happened. Confabulation tends to increase with age. Misleading Post-Event Information Information that you learn after an event can change your memory of an event. This includes event subtle information and helps to explain why eyewitness testimony can be unreliable. Priming Priming describes the factors leading up to an event that affects our perception of it. Also called suggestibility and presupposition, priming is the difference between asking how short a person is, versus how tall a person is. Saying, "Did you see the black car?" instead of "...a black car?" makes a subtle suggestion that influences response and memory. In essence, memories are vulnerable bits of information stored in the brain that can be changed over time. While we assume that our memories are accurate, this is not necessarily the case. Alternate Realities One theory for the basis for the Mandela effect originates from quantum physics and relates to the idea that rather than one timeline of events, alternate realities or universes may be taking place and mixing with our timeline. In theory, this would result in groups of people having the same memories because the timeline has been altered as we shift between these different realities. You aren't alone if you think this sounds unrealistic. Unfortunately, the idea of alternate realities is unfalsifiable, meaning there is no way to disprove that these other universes don’t exist truly. This is why such a far-fetched theory continues to gain traction among the Mandela effect communities. You can't prove it's not real, so you can't discount the possibility of it. For many people, the excitement of a bit of mystery in everyday life also likely comes into play. Recap While the notion of alternate realities might appeal due to its air of mystery, many examples of the Mandela effect are likely due to some type of collective misremembering. Incorrectly recalling information is, in fact, quite common. One study found that 76% of people made some type of mistake when asked to recall information. The Internet's Impact The role of the internet in influencing the memories of the masses should not be underestimated. It's probably no coincidence that consideration of the Mandela effect has grown in this digital age. The internet is a powerful way to spread information, and with this spreading of information comes the potential for misconceptions and falsehoods to gain traction. People then begin to create communities based around these falsehoods and what was once in the imagination starts to seem factual. In fact, in a large study of over 100,000 news stories discussed across Twitter, conducted over a period of 10 years, showed that hoaxes and rumors won out over the truth every time by about 70%. This wasn't the result of manipulation or bots either—real verified accounts of real people were responsible for spreading false information at a much higher rate than the truth. This notion of the speed with which false information spreads on the internet could help to explain the Mandela effect. As each person chimes in with their own experience or memory of an event, those false memories could affect the memories of other people, thus coloring them to remember the events in the same way. For example, Sinbad did star in other movies in the 1990s and appeared in a movie poster for the film "Houseguest" coming out of a mailbox (this looked similar to a genie, which could explain the association with the movie "Shazaam"). Sinbad also dressed up like a genie for an event that he hosted in the 1990s. When one person mentioned this movie "Shazaam" (likely on the internet), it altered the memories of other people who tried to recall the movies that Sinbad made from the 1990s. Online communities spread this information until it appeared to be factual. This explanation is supported by evidence that remembering something repeatedly builds your confidence in the memory even if it grows more inaccurate over time. As more and more people provided incorrect details, these become incorporated into other people's memories as facts and strengthened their conviction that they were correct. The Mandela effect continues to be hotly debated, despite reasonable evidence that it is more likely explained in terms of the fallibility of human memory than some form of parallel universes at work. Of course, we don't know everything. As more incidents of the Mandela effect continue to occur, perhaps more research into the origins will shed light on the causes. What Is Memory? 7 Sources Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Prasad D, Bainbridge W. The Visual Mandela Effect as evidence for shared and specific false memories across people. PsyArXiv. 2021. doi:10.31234/osf.io/nzh3s Robins SK. Confabulation and constructive memory. Synthese. 2017;196(6):2135-2151. doi:10.1007/s11229-017-1315-1 Straube B. An overview of the neuro-cognitive processes involved in the encoding, consolidation, and retrieval of true and false memories. Behavioral and Brain Functions. 2012;8(1):35. doi:10.1186/1744-9081-8-35 Wentura D, Rothermund K. Priming is not priming is not priming. Social Cognition. 2014;32(Supplement):47-67. doi:10.1521/soco.2014.32.supp.47 French A. The Mandela Effect and new memory. Correspondences: Journal for the Study of Esotericism. 2018;6(2):201-233. Diamond NB, Armson MJ, Levine B. The truth is out there: accuracy in recall of verifiable real-world events. Psychol Sci. 2020;31(12):1544-1556. doi:10.1177/0956797620954812 Vosoughi S, Roy D, Aral S. The spread of true and false news online. Science. 2018;359(6380):1146-1151. doi:10.1126/science.aap9559 Additional Reading Aamodt C. On shared false memories: what lies behind the Mandela effect. Brown AD, Kouri N, Hirst W. Memory’s malleability: Its role in shaping collective memory and social identity. Front Psychol. 2012;3. Cochran B. The Mandela Effect. Julu N. Top 10 Examples of the Mandela Effect That Will Leave You Scratching Your Head. Zaragoza MS, Mitchell KJ, Payment K, Drivdahl S. False memories for suggestions: The impact of conceptual elaboration. J Mem Lang. 2011;64(1):18-31. By Arlin Cuncic, MA Arlin Cuncic, MA, is the author of "Therapy in Focus: What to Expect from CBT for Social Anxiety Disorder" and "7 Weeks to Reduce Anxiety." She has a Master's degree in psychology. See Our Editorial Process Meet Our Review Board Share Feedback Was this page helpful? Thanks for your feedback! What is your feedback? Other Helpful Report an Error Submit