Friday the 13th is a date considered to be bad luck in western superstition. The fear of Friday the 13th is called friggatriskaidekaphobia. But, triskaidekaphobia means a fear of the number thirteen. Did you know there is no written evidence for a "Friday the 13th" superstition before the 19th century? An estimated 21 million people in the United States are affected by a fear of this day. This astonishing fact makes Friday the 13th the most feared day and date in history! Some people are so paralyzed by this fear that they avoid their normal routines in doing business, taking flights or even getting out of bed. Are you affected? Are you still in bed? Thanks for visiting!