49 Hoaxes People Actually Believed

John Green looks at some of history's greatest hoaxes.


50 Common Misquotations

John Green looks at 50 common misquotations and misattributions.


36 Unusual Units of Measurement

Did you know words like "jiffy" and "dash" and "pinch" actually have very specific meanings.


38 Common Spelling and Grammar Errors

John Green runs through some of the most common spelling and grammar errors.


41 Undomestic, Domesticated Animals

John Green looks at some rather odd pet choices including zebras, skunks, and hippos.


The Stories of 56 Acronyms and Initialisms

John Green sorts through acronyms and initialisms you may not know the origins of, such as M&M's and BMW.


31 Kissing Cousins

A look at some rather famous people who married their cousins, including Albert Einstein and Charles Darwin.


50 Weird American Laws

Don't even try to sell your eyeball in Texas.


35 Facts About Mr. Rogers

Fred Rogers would have turned 85 years old today.

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