The superstition surrounding Friday the 13th has connotations steeped in biblical history and numerology, and the date reflects a double whammy of bad luck.
The number 13 is said to come from the number of apostles attending the ill-fated Last Supper, while Friday is a day of blackness because that's the day the crucifixion took place. Another school of thought contends that the tradition came from a single event -- the slaughter of the Knights Templar in France on Friday, October 13, 1307.
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See also:
Triskaidekaphobia
Earlier:
Texas Sect Leader: Doomsday Begins Thursday, June 12
