Happens everywhere. Nationalism is hidden in every country's history curriculum. I learned my country was the first in the world to abolish slavery (actually had them til 1950s, documented) among a bunch of other lies I only discovered later. Most of them are embellishments of real things but others are just flat out wrong.

If you want to see examples you don't even need my school books. Compare these chronological lists in both languages, in English wikipedia or Portuguese wikipedia:

- https://pt.m.wikipedia.org/wiki/Cronologia_da_aboli%C3%A7%C3...

- https://en.m.wikipedia.org/wiki/Timeline_of_abolition_of_sla...

Very different!