History of Friday the 13th


If you’re reading this article to learn the history of Friday the 13th, you’re in luck.

Or perhaps bad luck.

No one knows, with any certainty, when it began or why it’s to be feared. However, there are lots of entertaining speculative theories about the topic.



What is the Fear of Friday the 13th?

  • Paraskevidekatriaphobia — is the name of the superstition. The word is constructed from the Greek words Paraskeví (Παρασκευή), meaning “Friday,” and dekatreís (δεκατρείς) meaning “thirteen.”
  • Friggatriskaidekaphobia — is the fear of Friday the 13th. The word is made of both Norse and Greek roots: Frigg or Frigga, the name of the wife of the Norse god Odin. Friday gets its name from Frigg. Triskadeka is “thirteen” in Greek (literally: “three” “and” “ten”), and phobia means “fear.”

12 is completeness, 13 is useless

Twelve is considered in many cultures as complete. Mathematically, it can be divided into half, thirds, and quarters. You can’t do that neatly with Ten.


  • 12 Days of Christmas12 tribes of Israel
  • 12 days of Christmas
  • 12 hours in a day
  • 12 months
  • 12 Zodiac signs
  • 12 gods of Olympus and Norse mythology

Thirteen is a dubious number, and Friday has gotten a bad rap. Add them together, and you get Friday the 13th.


Friday in the Bible

There are several ominous Fridays in the Bible.

  • The Crucifixion of Jesus was on Friday, later called Good Friday. Subsequently, Good Friday became a day of penance.
  • Eve gave Adam an apple to eat on Friday
  • Cain killed Abel on a Friday


13 in the Bible

  • The Last SupperThe Last Supper featured 13 around the table, including Jesus and the 12 Disciples. Judas Iscariot left the Supper to betray Jesus to the authorities. Judas subsequently took his own life.
  • The Flood of Noah is said to have occurred on Friday, September 13


Friday the 13th in Mythology

  • BaldarThe Old Norse story is told about the twelve Nordic gods dining in Valhalla when an uninvited guest, Loki, the god of mischief, joined the group, making it 13. During that dinner, Loki deceived the blind god Höd to shoot Baldar, son of Odin and Frigg, with a mistletoe-tipped arrow, the only thing able to kill Baldar


Friday the 13th in History

  • Canterbury TalesAn early story suggested the origin of the fear of 13 came from one of the world’s oldest legal documents, the Code of Hammurabi, which predated the 10 Commandments. Supposedly, the Code omitted a 13th law from its list of legal rules. However, the omission was merely a clerical error made by one of the document’s earliest translators, leaving out a line of text. The Code doesn’t even numerically list its laws.
  • The Fall of Constantinople in the Fourth Crusade occurred on Tuesday, April 13, 1204
  • On Friday, Oct 13, 1307, Philip IV of France arrested hundreds of Knights Templar to seize their financial assets. They were subsequently burned at the stake. Grandmaster Jacques De Molay cursed Philip before his execution. The author Dan Brown, in The DaVinci Code, popularized this story.
  • In the 14th century, George Chaucer wrote in The Canterbury Tales,

    “On a Friday fell all this mischance.”


  • Film Friday the 13thWhile it was recognized in late Victorian England, it really took off in the early 20th century. In 1907, Thomas Lawson wrote a book called Friday, the Thirteenth. It was about a stockbroker who intentionally endeavored to crash the stock market on this date. The following year, the New York Times acknowledged the vast superstition of Friday the 13th
  • In the 1980s, a series of Paramount Pictures Friday the 13th films began, with the antagonist Jason slashing his way through summer camp.
  • It is said that 1 in 4 Americans claim they are superstitious. The rest were struck by lightning after walking under a ladder to avoid a black cat who had broken a mirror.


Friday the 13th Fear is Mostly American and English

The fear of Friday the 13th is primarily an Anglo-American phenomenon. But, the spread of this culture worldwide has affected other cultures.

  • Hotel Missing 13th FloorSome hospitals skip the 13th flood
  • 80% of American hotels skip the 13th flood
  • Winston Churchill refused to sit on the 13th row of a plane or theatre
  • Franklin D. Roosevelt never dined with 12 others and avoided traveling on the 13th
  • Alfred Hitchcock was born on August 13, 1899, and his first movie was called Number 13


Friday the 13th in Other Cultures

  • Missing 4th floorIn parts of Asia, there is tetraphobia fear of the number four. The 4th month is unlucky; the word four in Chinese sounds similar to death.
  • I stayed in a hotel in Seoul, Korea, where the elevator went from the 3rd to the 5th floor.
  • For the Greeks: Tuesday is unlucky; it’s associated with Ares, the god of war
  • In Spanish-speaking countries: Tuesday the 13th is unlucky
  • For Italians: Friday the 17th is unlucky, but it’s shifting to Friday the 13th


How Commonly does Friday the 13th Occur?

  • Friday 13 always falls when a month begins on a Sunday, which occurs at least once a year.
  • There were two in 2020. Typically, there’s only one
  • The maximum it can occur is three times, such as in 2012 and 2015


Good luck!


Bill Petro, your friendly neighborhood historian

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About billpetro

Bill Petro writes articles on history, technology, pop culture, and travel. He has been a technology sales enablement executive with extensive experience in Cloud Computing, Automation, Data Center, Information Storage, Big Data/Analytics, Mobile, and Social technologies.

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