Politis

Tuesday the 13th: Is it Truly Unlucky? The Origins of the Superstition

Published January 13, 2026, 09:30
Tuesday the 13th: Is it Truly Unlucky? The Origins of the Superstition

The origin of the superstition surrounding 'unlucky' Tuesday the 13th, and Friday the 13th, has deep roots in history and culture. In Greece and Spain, Tuesday the 13th is considered unlucky, while in the rest of the Western world, Friday the 13th holds that reputation. This superstition is linked to various factors, such as the number 13 being considered incomplete, biblical references (the Last Supper), religious beliefs (Satan as the 13th angel), and historical events (the arrest of the Knights Templar). Tuesday is associated with Mars, the god of war, reinforcing its negative character. Friday the 13th is linked to the death of Jesus and the persecution of the Templars. This superstition has persisted throughout the ages and has influenced societies.