Can you present an historical event or series of event where you believe history has been erased as well as your reasonning behind this choice?
Popular understanding of Columbus is a mess. I blame Washington Irving for a lot of it.One thing that comes to mind is the story of Christopher Columbus. Many history books record him as a brave explorer and completely ignore the fact that he committed genocide.
What did you learn about Columbus when you were in grade school?
I had to find out on my own that Columbus was removed from his governorship arrested, and imprisoned for his cruelty toward the native inhabitants.
I also had no idea that the old narrative about him thinking the world was round and everyone else thinking it was flat was absolute garbage. The sales pitch he shopped around to the royal courts of Europe - i.e. that Japan was a far west of the Canary Islands as Africa was east of them - was absolute bunk, part scam and part bad research by Columbus (including the worst unit conversion error in history before the Mars Climate Orbiter incident).
It was only the existence of a continent nobody in Europe knew about that saved Columbus and his men from dying of thirst and starvation in the middle of the ocean.