I went through public elementary and high school. The amount of world history taught there is vanishingly small.

Just for fun, ask some high schoolers who were the major combatants in WW2.

> The amount of world history taught there is vanishingly small. Just for fun, ask some high schoolers who were the major combatants in WW2.

That is an example of poor teaching of historical facts. It's bad (especially in our current times when people have forgotten the perils of fascism), but it's different than what the GP describes, which sounds like the biblical literalist timeline of life on Earth (with creation happening only 6000 years ago).

That is not just poor education, but instead direct contradiction of widely understood knowledge that much of our modern world is built on.

To use your WW2 example, it's similar to explicitly teaching someone that the Holocaust didn't happen. Or in the scientific realm teaching that the earth is flat.