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) The franchise's popularity has generated a fanbase who have created their own "Friday the 13th" films, fashioned replica Jason Voorhees costumes, and tattooed their bodies with "Friday the 13th" artwork. Jason's hockey mask has become one of the most recognizable images in horror and popular culture. In the original "Friday the 13th" (1980), Mrs. Pamela Voorhees (Betsy Palmer) stalks and murders the teenagers preparing Camp Crystal Lake for re‑opening. She is determined to ensure that the camp does not reopen after her son Jason (Ari Lehman) drowned in the lake due to the negligence of two staff members. The last