If you've found yourself questioning your sanity over any of these quibbles, you may have experienced the Mandela effect ... Popular belief: Uncle Sam’s hat is white with red stripes Reality ...

That’s when she coined the term Mandela Effect – when a large group of people remember something that never actually happened. 'Play it again, Sam' was never used in the film Casablanca ...

Experts don't know exactly what causes the Mandela effect, or false memories shared ... Mr. Monopoly's monocle Rich Uncle Pennybags, the Monopoly board game mascot, does not wear a monocle ...