This graffiti doodle was popularized by United States servicemen during World War II, which features the British cartoon character Mr. Chad.

These cliche rhyming poems are derived from lines in Edmund Spenser's epic poem The Faerie Queene, first published in 1590.

Pioneered by Ancient Greek physician Hippocrates, Humorists spent thousands of years believing people's personalities were affected by the amounts of black bile, yellow bile, blood and phlegm inside of them.

This mathematical array of binomial coefficients was actually created long before French mathematician Blaise Pascal popularized it in the Western world.