Friday the 13th is considered by many as one of the unluckiest days of the year — And guess what? It's here. 

In 2017, there are two Friday the 13ths — Jan. 13 and, today, Oct. 13. If you're reading this, it looks like you made it through the first one safe and sound. So this second one should be a piece of cake, right?

Whether you believe in the superstition behind the date or not, a few intriguing facts:

  1. Friday the 13th has biblical origins. Some historians have claimed it was the day on which Eve bit the apple. In the New Testament, there were 13 people present for Jesus's last supper on Maundy Thursday, the day before Christ's crucifixion on Good Friday.
  2. The number 12 is historically considered the number of completeness (12 months of the year, 12 gods of Olympus, 12 hours on a clock) while its older cousin, 13, has been seen as an outlier.
  3. In the 14th Century, Geoffrey Chaucer referenced Friday as being an unlucky day in his “Canterbury Tales" —  “And on a Friday fell all this mischance.”
  4.  In numerology, 13 is considered to be an irregular number.
  5. 13 is the number of witches you need to form a coven.
  6. The Hollywood sign, which originally read "HOLLYWOODLAND," was unveiled on Friday the 13th of July 1923.
  7. Celebrities born on Friday the 13th include Mary-Kate and Ashley Olsen, Julia Louis Dreyfus, Steve Buscemi, Max Weinberg and Peter Tork. Tupac Shakur died on Friday, September 13, 1996. Alfred Hitchcock, born Aug. 13, 1899, would have celebrated his 100th on Friday the 13th of August of 1999.
  8. The 13th film in the "Friday the 13th" franchise is being developed by Paramount Pictures, with a 2017 release date. The original premiered on May 9, 1980.
  9. On Friday April 13, 2029, a large asteroid will fly close enough to the Earth to be visible without a telescope in Africa, Europe and Asia, according to NASA.
  10. In some Spanish-speaking countries, Tuesday (Martes) the 13th is considered bad luck. Tuesday is feared because it is the day of the week associated with the Roman god of war, Mars. 
  11. Psychologists refer to fear of Friday the 13th as paraskavedekatriaphobia.
  12. Whenever a common year begins on a Thursday, the months of February, March, and November will have a Friday the 13th.
  13. Since 1995, Finland has dedicated one Friday the 13th in a year to observe National Accident Day.

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What superstition (even if it's silly) do you believe in? Weigh in on social media!