Why Is Friday the 13th Considered Unlucky?

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Ah, Friday. It’s normally a day we look forward to as school or the workweek comes to a close and we get ready to enjoy a blissful reprieve from at least a few of our responsibilities. But add a few key numbers — say, a 1 and a 3 — to this anticipated day of the week and it suddenly becomes the stuff of nightmares...at least to those of us who are superstitious.

Friday the 13th has long carried creepy connotations in Western culture, so much so that there’s even an official phobia describing a fear of the date. But have you ever wondered why? Like walking under a ladder or breaking a mirror, Friday the 13th makes many of us nervous, even if we aren't exactly sure of the reason behind it.

While it’s easy to assume the superstition originated with (or was at least exacerbated by) the Friday the 13th movie franchise, its genesis goes back much further in time. Let's take a trip into history to find out exactly why many people consider Friday the 13th the unluckiest date on the calendar.