Why are people so scared of Friday the 13th?

Where did the Friday the 13th legend start? What makes 13 an 'unlucky' number? Should you stay home on Friday the 13th? Have you started your FREE TRIAL of Who Smarted?+ for AD FREE listening, an EXTRA episode every week & bonus content? Sign up right in the Apple app, or directly at WhoSmarted.com and find out why more than 1,000 families are LOVING their subscription! Get official Who Smarted? Merch: tee-shirts, mugs, hoodies and more, at Who Smarted?