Swear words: humanity’s greatest invention right after fire, the wheel, and accidentally stepping on Lego bricks. From Roman graffiti that basically said “Yo, you’re a loser,” to Viking roast battles that could end your social life, this video is a masterclass in how humans have been cussing since forever.

This video dives into the weird, wild, and sometimes very deadly history of swearing: from medieval oaths that could get you out of jail, to Shakespeare making insults sound like epic poetry, to Victorians who thought even saying “trousers” might summon the wrath of polite society. Check it out!