Discover the meaning behind the myths that still shape our world.

Friday the 13th is Unlucky

Why Friday the 13th Is Feared as a Day of Misfortune

Details

Friday the 13th is widely considered an unlucky day when misfortunes are more likely to occur. Many people avoid important activities, travel, or significant decisions on this date.

Historical Context

This superstition combines two separate unlucky elements:
• Friday was considered unfortunate in Christian tradition because Jesus was crucified on that day
• The number 13 gained negative associations from several sources:
o The Last Supper had 13 participants before Jesus’s betrayal
o Norse mythology described how Loki (the 13th guest) brought disaster to a divine banquet
o The Knights Templar were arrested on Friday the 13th in October 1307

Modern Relevance

Fear of Friday the 13th (paraskevidekatriaphobia) remains widespread in Western culture. Studies show that some businesses experience reduced activity on these dates. According to the Stress Management Center and Phobia Institute, an estimated 17–21 million Americans experience anxiety about Friday the 13th, costing the U.S. economy approximately $800–900 million in lost business each occurrence.

Sources

  • Vyse, S. (2013). Believing in Magic: The Psychology of Superstition. Oxford University Press.
  • Lachenmeyer, N. (2004). 13: The Story of the World’s Most Popular Superstition. Thunder’s Mouth Press.

Quick Facts

Historical Period

Negative date symbolism

Practice Type

Cultural and religious blend

Classification

Widespread modern anxiety

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