Why Friday the 13th Is Unlucky

Friday the 13th, ‘the most widespread superstition’

The sixth day of the week and the number 13 both have foreboding reputations said to date from ancient times. It seems their inevitable conjunction from one to three times a year (there will be three such occurrences in 2012, exactly 13 weeks apart) portends more misfortune than some credulous minds can bear. According to some sources it’s the most widespread superstition in the United States today. Some people refuse to go to work on Friday the 13th; some won’t eat in restaurants; many wouldn’t think of setting a wedding on the date.
Legend has it: If 13 people sit down to dinner together, one will die within the year. The Turks so disliked the number 13 that it was practically expunged from their vocabulary (Brewer, 1894). Many cities do not have a 13th Street or a 13th Avenue. Many buildings don’t have a 13th floor. If you have 13 letters in your name, you will have the devil’s luck (Jack the Ripper, Charles Manson, Jeffrey Dahmer, Theodore Bundy and Albert De Salvo all have 13 letters in their names). There are 13 witches in a coven.

The Devil’s Dozen

Although no one can say for sure when and why human beings first associated the number 13 with misfortune, the superstition is assumed to be quite old, and there exist any number of theories — most of which deserve to be treated with a healthy skepticism, please note — purporting to trace its origins to antiquity and beyond.
It has been proposed, for example, that fears surrounding the number 13 are as ancient as the act of counting. Primitive man had only his 10 fingers and two feet to represent units, this explanation goes, so he could count no higher than 12. What lay beyond that — 13 — was an impenetrable mystery to our prehistoric forebears, hence an object of superstition.
Which has an edifying ring to it, but one is left wondering: did primitive man not have toes?

Life and death

Despite whatever terrors the numerical unknown held for their hunter-gatherer ancestors, ancient civilizations weren’t unanimous in their dread of 13. The Chinese regarded the number as lucky, some commentators note, as did the Egyptians in the time of the pharaohs.
To the ancient Egyptians, we’re told, life was a quest for spiritual ascension which unfolded in stages — twelve in this life and a thirteenth beyond, thought to be the eternal afterlife. The number 13 therefore symbolized death, not in terms of dust and decay but as a glorious and desirable transformation. Though Egyptian civilization perished, the symbolism conferred on the number 13 by its priesthood survived, we may speculate, only to be corrupted by subsequent cultures who came to associate 13 with a fear of death instead of a reverence for the afterlife.
Legend has it: Never change your bed on Friday; it will bring bad dreams. If you cut your nails on Friday, you cut them for sorrow. Don’t start a trip on Friday or you will encounter misfortune. Ships that set sail on a Friday will have bad luck, as in the tale of H.M.S. Friday. One hundred years ago, the British government sought to quell the longstanding superstition among seamen that setting sail on Fridays was unlucky. A special ship was commissioned and given the name “H.M.S. Friday.” They laid her keel on a Friday, launched her on a Friday, selected her crew on a Friday, and hired a man named Jim Friday to be her captain. To top it off, H.M.S. Friday embarked on her maiden voyage on a Friday — and was never seen or heard from again.

Postscript: A novel theory

In 13: The Story of the World’s Most Popular Superstition (Avalon, 2004), author Nathaniel Lachenmeyer argues that the commingling of “unlucky Friday” and “unlucky 13″ took place in the pages of a specific literary work, a novel published in 1907 titled — what else? — Friday, the Thirteenth. The book, all but forgotten now, concerned dirty dealings in the stock market and sold quite well in its day. Both the titular phrase and the phobic premise behind it — namely that superstitious people regard Friday the 13th as a supremely unlucky day — were instantly adopted and popularized by the press.
It seems unlikely that the novelist, Thomas W. Lawson, literally invented that premise himself — he treats it within the story, in fact, as a notion that already existed in the public consciousness — but he most certainly lent it gravitas and set it on a path to becoming the most widespread superstition in modern times.

By David Emery, About.com Guide