US history education is not the only thing that sucks. The only thing I remember from history education in the Danish school system is:

• Vikings (cool)
• Knights (they lived in castles)
• King Christian IV built a lot of pretty buildings
• Something about the French Revolution that was actually quite decent
• WWII, the Germans started it because they wanted to kill all Jews. Then they occupied Denmark and you couldn't get coffee any more. Luckily the resistance movement (they were nationalists who loved liberal democracy, the word "communist" was never spoken) won with help from the British and the Americans.

And that's about it. Nothing about the social upheavals of industrialisation, not a single word about labour history or colonialism or whatever happened outside of Denmark or Europe. Not a single word about the revolutions in Russia, Germany, China, Cuba or anywhere else. Not even anything about the very significant, and at times violent, struggle between conservative estate owners and liberal peasants in the 1800's that was extremely formative for Danish society. Nothing about how for centuries imbecile elites led the nation into one catastrophic war after the other.

Liberal-conservative history education is a tool of indoctrination that actively constructs a mirage of a single unified nation, bound together by lofty patriotic sentiments.