“…Belief in the ill-fortune that supposedly accompanies the date of Friday the 13th is widespread across the Western world and has ancient and somewhat uncertain origins. Both the number 13 and Friday have long and separate histories of "bad luck", but it is believed that the two were combined to create an unfortunate date as recently as the beginning of the 20th Century (see Chaundler, 1970). Explanations for the two lines of superstition can be found in Christian literature -Christ was allegedly crucified on a Friday, and the number of people seated at the table for the last supper was 13.…”