Why is Friday, the 13th Considered to be Unlucky?

Friday the 13thIt’s Friday. Yeah! It’s Friday, the 13th! Oh no. Why do we fear Friday, the 13th?

Number 13

  • The number 13 is an unlucky number because it is an irregular and is the number of witches needed to form a coven.
  • The number 12 is considered a complete number (12 hours, 12 tribes of Israel, 12 apostles, 12 successors of Muhammed, 12 signs of the Zodiac, etc…) Thirteen upsets the basket!
  • Nordic legend says that 12 gods had a dinner party and that the 13th guest (a god of mischief) arranged for the god of joy to be shot, thus bringing the world into mourning.
  • Christians site that Judas was the 13th guest at the last supper.


  • Biblical references: Jesus Christ was crucified on a Friday. Cain killed Abel on a Friday.
  • Friday was the day people were hanged in Britain.
  • Sailors setting sail have historically avoided Fridays for their journeys.
  • Canterbury Tales (14th century) says: “And on a Friday fell all this mischance.”

Interesting Friday the 13th Facts

  • Less people travel on this day
  • Friggatriskaidekaphobia is the fear of Friday the 13th

Read more about Friday the 13th here.

Enjoy your Friday!




2 thoughts on “Why is Friday, the 13th Considered to be Unlucky?

  1. The Templars were attacked and disbanded on Friday the 13th in the year 1307 by authority of King of France and Pope. Ever after, Friday the 13th was considered unlucky.


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