Sometimes, confidence can be a great thing—unless you're completely wrong. These people proudly declared their answers with total certainty, only to be proven hilariously incorrect. Scroll through these moments of misplaced confidence and vote for the ones that made you cringe the most.
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The Evils Of Sunscreen And History Class
Source: George Washington's Skin Cancer

Photo: u/BetterBagelBabe Reddit
'Milk Isn't Dairy'

Photo: u/romeovf Reddit
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'It's A Direction'

Photo: u/1Hate17Here Reddit
'They Didn't Exist In Biblical Days'

Photo: u/Jauxson Reddit
Path To The Devil Apparently Starts With Safety Harnesses

Photo: TwitterTwitter
Perhaps Read A Few More Comics? Watch A Few More Movies?

Photo: u/OkWondera Reddit
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This Bold Ye Claim

Photo: u/doriangreat Reddit
American History 101

Photo: TwitterTwitter
'Red Blood Cells Are Not Real Cells'

Photo: u/bumblebleebug Reddit
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No. No It Is Not.

Photo: u/seanbentley441 Reddit
Queen Of Diamonds, Perhaps?

Photo: TwitterTwitter
...Read That Again

Photo: u/SSBGOGETA66 Reddit
Evidence To The Contrary

Photo: u/ExactlySortaReddit
There's A Twist In There

Photo: TwitterTwitterTwitter
Where Wolf?

Photo: u/seanbentley441 Reddit
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According To The Bible, The Flintstones Is Fact

Photo: TwitterTwitterReddit
A Smug Man That REALLY Can't Take Being Proved Wrong

Photo: u/jay_em_dee Reddit
Christmas and Reindeers

Photo: BassesBestReddit
Somebody Please Stop Her

Photo: TwitterTwitterTwitter
Happy Passover (Or Whatever)

Photo: u/Flupox Reddit
The Culture

Photo: N4TETHAGR8Reddit
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Simple Math Right?

Photo: dengoy-pxReddit
Not Quite Dartmouth

Photo: u/KnopeICant Reddit
Alaska Is A Country

Photo: SpocktorWho83Reddit