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Facts About The Unlucky Number: 13

The number thirteen is considered as the only unlucky number; however the actual reason is unknown. Many people believe that Friday the 13th is an unlucky day or that the 13th floor of a building is unlucky. Here are some possible explanations that may explain why the number 13 is so unlucky:

At the time of Alexander the Great, there were 12 Gods, one to represent each month of the year. Alexander wanted to be a God so he had a statue built in his home-town. Shortly after this he died. People thought that because of his desire to be a 13th God, that’s the reason he died.

One theory is that the superstition goes back to The Last Supper. There were 13 people at the meal, including Jesus Christ and Judas was thought to be the 13th guest, who was the one who betrayed Jesus.

Another theory goes back to the days when they used to hang people – a properly constructed hangman’s noose consists of 13 wraps above the noose. Also, often there were 13 steps leading up to the gallows platform as this was the correct height needed for the people’s neck to break.

Triskaidekaphobia is the fear of the number 13.

Paraskevidekatriaphobia is the fear of Friday the 13th.

There is always at least one Friday the 13th in each year. In some years there’s two and occasionally three. In 2009 and 2012 there were three Fridays which fell on the 13th day of the month.

A story published by the British Medical Journal in 1993 called “Is Friday the 13th Bad for Your Health?” found that generally fewer people choose to drive on Friday the 13th, however the number of people who go to hospital on that day is considerably higher compared to ‘normal’ Fridays.

Because of it being such an unlucky number many cities don’t have a 13th street or 13th Avenue, many elevators don’t list the 13th floor and many hotels don’t have a room number 13, it is sometimes 12-A.

Finally, in tarot reading, the number 13 is the death card.

About the Author

Luke Ward
Luke Ward is the founder of The Fact Site. He's a professional blogger & researcher with over 10 years’ experience in fact finding, SEO & web design. In his spare time he loves to travel and drink coffee.


  1. michael - 30 December 2012 - Reply

    thank god i was born on 12 nov 12 lucky num

  2. Benmariadavis - 10 March 2012 - Reply

    i was born on 13th Jan

  3. Priya - 26 January 2012 - Reply

    oh my god !!!!!!!!
    i was born on 13 dec
    that’s kasab’s birthday

  4. Dana - 30 July 2011 - Reply

    hahaa holy moly!!! Thanks for the info! :) I was born on december 8th though. lucky 8!

    • Priya - 26 January 2012 - Reply

      my birthday is on 13 dec

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