Mandela effect

   

Have you ever dreamed about parallel uneverses? Do you like conspiracy theories if so you should have heard about the Mandela effect, an unexplained phenomenon that you’ve probably experienced without knowing it.
It consists in what the internet is calling those curious instances in which many of us are certain we remember something a particular way, but it turns out we’re incorrect.

Here are some famous examples:
 Pikachu's tail was never black
                               

C3PO wasn't gold at all, he had a silver leg

And there are a many others, some people talk about parallel universes because there's a lot of coincidences for many people, others say that they are small memory failtures. I'll let you take your own opinion.