Depending on where you live, your answer may be different. I am approaching this from am American perspective, but feel free to add a perspective from your own country.

The teaching of history is controversial in the United States, particularly when it comes to topics like race, slavery, and institutional segregation (Jim Crow). What should be taught about these topics in American public schools? At what ages? Should the negative aspects of history be toned down so students don't feel guilt?

How were you taught history? What was memorable about what you were taught?

In Germany, for example, I have heard from some acquaintances there that there is no sanitization of history. Students there learn about the Holocaust and Germany's role in WWII.

Japan is a more complicated matter; they have had trouble reckoning with their brutal activities in China during the run up to WWII.

It's important that kids have a narrative to identify with. No one can deny the role white Americans had in oppressing black Americans. But it's also important to highlight the white Americans who opposed slavery and Jim Crow and supported Civil Rights. It's also important not to instill in minority students that they are eternal victims who can't succeed because the system is rigged against them. No untruths should be taught and facts should not be glossed over, but teaching history is more than just rattling off facts. It matters which facts are taught. It matters whom students identify with on a personal or national level.

Thank you for your answers. My comment about Germany was too general and I've edited it to say that I've only heard that from friends of my cousins who live there. Can't speak for an entire nation, obviously.