From humorous anecdotes by renowned authors to the surprising effects of suppressing flatulence, and even the science behind why odors seem stronger in the shower, here are some fascinating tidbits you’ve likely never come across before.

The world’s oldest recorded joke was a fart joke.

The tradition of bathroom humor stretches back through history.

\In 2008, scholars at England’s University of Wolverhampton discovered an ancient joke from 1900 BCE, showcasing the timeless appeal of humor.

A Sumerian jest humorously recounts such an event: “Something which has never occurred since time immemorial; a young woman did not fart in her husband’s lap.”