April 1st. One day a year the entire planet agrees: nothing is Stone Cold Fact. Your coffee, your news feed, even your girlfriend’s pregnancy test — all suspect. But behind the whoopee cushions and fake spiders hides one of history’s strangest truths: April Fools’ Day may be the most significant date on the calendar. Assassinations, empires, trillion-dollar companies, the birth of the U.S. government itself — all landed on April 1st. And most of us still spend the day just checking our backs for sticky notes.

In this episode we finally hunt down the real origin of April Fools’ Day — and spoiler: historians have been fighting about it for 400 years with no clear winner. We play the ultimate game — April Fools or Stone Cold Fact? — revealing real events that sound completely made up (the U.S. House of Representatives opening  ...