I used to believe that Clint Eastwood actually lived in the old west, but I also knew that he was still alive in the present day (this was around 2009 or so), so you can imagine how old he must've been if that was the case. I probably believed this because the main place I learned about him from was Back to the Future.
I used to believe the Wall Street Crash of 1929 was a literal car crashing into a bank.
I thought parents only said, "Go to your room!" in the 1950s.
I thought Bonnie and Clyde were fictional characters.
When I was about 10 years old John Lennon was assassinated. I did not know who John Lennon was (though I did know of the rock band, the Beatles). In school we had recently learned about the Russian communist dictator Vladimir Lenin, and that's who I thought had died. I wondered why everyone was so sad about such a bad man dying, and thought maybe he had changed his ways, or maybe he wasn't as bad as the teacher thought. I also thought it was weird that he hadn't died yet. I would have thought he'd died years and years ago.
I got the 1990s and 1900s mixed up, so I thought people wore that fancy old-fashioned garb in the 1990's.
I used to believe in a sudden end of the world
I used to believe that all autobiographies ended in a string of gibberish because I only ever read biographies of dead people so I assumed that an account of the subject's death was a necessary part of a biography and there was no way someone writing an autobiography would be able to get out the full account of their own death before collapsing at their keyboard.
I used to believe that before the advent of color photography, everything was black and white and that before the advent of photography, everything was a cartoon.
I used to think that the 'olden days' ended because everybody died including the children. Then there were new people who made up the modern times.
i used to believe color was invented. I would see old pictures in black and white and think that everything looked that way in real life.
(on account of the black and white movies) when i was young i thought that the world was black and white and then people discovered the colors
When I was about 7 I used to believe that in the old days everybody saw in black and white (because all old photos were black and white). I just assumed that's how life looked to everyone back then.
I thought there were no pirates alive today!
I used to believe in the 3rd grade that when the first president was born the world was born, and that the presidents have existed for 1000s of years ...
I used to think that in the past, everything was black and white - there was no colour. So I'd always ask my mum 'when did the world get colour?'
My dad was a Vietnam vet and when I was little he would tell me about different things he saw/did while there. It was never anything war-related, it would be more like "I saw a lot of monkeys like that in Vietnam" or "It used to rain a lot in Vietnam." I thought that being in Vietnam, then, was something men went and did before they were qualified to become fathers.
Of course, I learned otherwise.
I used to think that a long time ago humans and animals could talk to each other.
Then the animals began to loose their ability to talk as the humans began to invent more complex technology.
I used to love browsing though a picture book about ancient history when I was a kid. The section on Ancient Egypt had several illustrations of men in Anubis masks performing burial rituals, but I didn't know they were just wearing masks. I though that some people in Ancient Egypt really had dogs' heads!
When I learned about the American Civil War in 4th grade, I thought there was a line that went across the middle of the country to determine which side you were on. I was in Southern California, so I thought we were part of the South...