"There's no gravity in space"
Eh, it depends who you're talking to. If you're explaining to kids why things float in space, that's a reasonable approximation. If you're teaching physics to high school students, you're really doing it wrong.

"Trojan horse"
When was this ever presented as fact? I actually remember learning about the search for a possible real world site of Troy and I remember being taught the STORY of this, but given it was in the same story about a guy who could only be killed in the heel, we weren't expected to believe it was 100% accurate. Talking snakes on the other hand? Totally real.

The rest are reasonable enough.

This isn't accurate at all on Columbus either.

Every educated person knew the Earth was round, they even had a pretty good idea of how BIG it was. Which is why nobody was insane enough to try the trip to the East over the Western sea. It was too far, they would simply die.

Columbus was an idiot who got the math wrong and thought the Earth was a lot smaller than everyone else knew it was. He didn't even really convince the Queen he was right, she just had lots of ships and on the off chance he might be right, she gave him three because the reward was worth the risk.

He then went on to slaughter a few million islanders in the Caribbean because they wouldn't tell him where the gold was (they had no gold).

So... he was basically an idiot and a homicidal maniac, responsible for one of the largest genocides the world has ever known. Yay, let's celebrate a day for him, America! (oh and he also never set foot in what is now the United States AND the first Europeans to come to the Americas were several hundred years earlier).

Where is this supposedly being taught? None of that was taught to me in school.

As for the Iliad's veracity, evidence has been found of a walled city destroyed by violence and fire right where Troy should be, but even if it hadn't, absence of evidence is not evidence of absence.

This guy went to a piss poor school if they told him all that nonsense. Even his corrections are replete with errors.

American schools (K-12) for me from the 80s to 90s.

Moving this video to ant's personal queue. It failed to receive enough votes to get sifted up to the front page within 2 days.

Jeez, what a stupid stack of stupidness. These are all pop culture memes, not school related .