The Mandela effect is basically when you remember something a certain way but it turns out to be different.
Normally you'd think you have remembered it wrong.
But what if thousands or even millions of people remembered it the same way yet it is actually different?
So it's basically a group of people remembering false information which they think was fact.
The origin of the name "mandela effect":
http://mandelaeffect.com/about/
If you google around a bit you can find more examples of this mandela effect with some of the most well known ones being:
-"Luke, I am your father." while it was actually "No, I am your father.".
-C3PO was fully gold. Then it had a silver bottom part on its leg, then it suddenly had a golden foot on that silver leg.
You can find more on the reddit page here:
https://m.reddit.com/r/MandelaEffect/
There's a lot of different theories about these things and ofcourse not everyone believes that the mandela effect is real which is fine.
I just wonder what you guys think about this since it's been getting bigger on the internet lately with more occurences being found each day.