History, fiction or non fiction?

https://www.medicalnewstoday.com/articles/mandela-effect

A lil summary above from the link.

I've been thinking a lot lately about what is actually true. Given all that has transpired over the last few years, I have seen first hand how people assimilate and record information.

Propaganda and cancel culture in what is now a very 'woke' world has the propensity to change the course of history. If this is so in the present moment, then what of history.

We only know what we have lived and even then, unless we were actually part of the event, then it's here say. Any retelling of a story is from the tellers point of view.

This can be confirmed in the way in which each family member might relay familial memories.

I've personally experienced family members changing the narrative in order to paint themselves in a better light. Might seem like a trivial example, but if you think about a similar situation you may have been part of, and how it's relayed, you can see how easy it is to paint a picture that's not a true representation of the facts. As time goes buy they allows their memories to only retain the new narrative. Imagine someone influential, with a following doing the same thing. It's not difficult to convince the masses.

Just yesterday I was having a conversation with a girlfriend, as to why some of us aren't so easily convinced. She simply said it's just a gut feeling we get. But that poses the question as to why everyone doesn't get a gut feeling that causes them to question and investigate. I was going to say research, but sadly as we have also come to realise, research too, is easily manipulated. I've watched some of the smartest people I know make some decisions and stands that personally surprised me. These decisions were based on blind faith. I'm not judging them, as they may feel the same about me. My point is that we all made vastly different decisions over the past few years. Decisions that affected every part of our social construct. On many levels we regressed as a society. And why, because we were feed propaganda by people who most considered trustworthy. It doesn't matter which side of the fence you sit on, we are all part of a history that is being contrived. In years to come the current events will be relayed with a rhetoric that will be vastly different to what we have lived. And new generations will pick and chose which parts they deem appropriate to retell.

Seeing all this evolve first hand, how can we as intelligent beings, just accept anything that has been passed through the years as having any semblance of accuracy.

What is fiction and what is factual...