Common year starting on Friday has only one Friday the 13th; The only Friday the 13th in this common year occurs in August. Leap years starting on Thursday share this characteristic, but also have another one in February. This is the only year type where the "n"th "Doomsday" (this year Sunday) is not in ISO week "n"; it is in ISO week "n"-1. In the (currently used) Gregorian calendar, the fourteen types of year (seven common, seven leap) repeat in a 400-year cycle (20871 weeks). Forty-three common years per cycle or exactly 10.75% start on a Friday. The 28-year sub-cycle does only span across century
Friday the 13th (franchise) base of the franchise has become so impassioned with the series that they have created films, latex body suits to emulate Jason's appearance, and tattoos of Jason and the "Friday the 13th" moniker on their body. S. T. Karnick, editor of "American Culture", wrote an article for the "National Review" detailing the impact "Friday the 13th" has had on the slasher genre and noting that the reasons critics have deplored the films are the same reasons why the franchise has had such a strong influence. Karnick explained that "Friday the 13th" did not try and recreate the same "clever" film