Friday the 13th has long been regarded as an unlucky day in Western culture, with many people avoiding major activities or decisions out of fear that bad luck may follow. While the exact origins of this superstition are unclear, it likely stems from the combination of two separate beliefs—both Fridays and the number 13 have historically been considered unlucky on their own. Religious traditions, cultural myths, and popular media have all helped to reinforce this idea.
The association of bad luck with Friday the 13th is tied to two key elements. First, the number 13 has long been seen as unlucky in Western cultures. Second, Friday has been viewed as a day of misfortune, particularly within Christian tradition, due to several biblical events linked to it.
One of the earliest connections to the number 13’s supposed bad luck comes from Norse mythology, as described in Charles Panati’s Extraordinary Origins of Everyday Things. The story tells how Loki, the mischievous god, crashed a banquet in Valhalla, raising the number of guests to 13. This led to a tragic series of events, including the accidental death of Balder, the god of light and joy, at the hands of his blind brother, Hodr.
Christianity also plays a major role in the superstition surrounding the number 13, particularly with the story of the Last Supper. Judas Iscariot, who would later betray Jesus, was the 13th guest at the table. His betrayal led to the crucifixion of Jesus, which took place on a Friday, further linking this day with misfortune.
While Friday the 13th remains steeped in superstition, rooted in ancient religious beliefs and cultural myths, modern attitudes toward the day are gradually changing. Many people now view it as just another date on the calendar, though some still hold on to their fears, others are beginning to challenge and question these long-standing superstitions.