Friday the 13th one occurrence each. A Friday the 13th occurs during any month that begins on a Sunday. The fear of the number 13 has been given a scientific name: "triskaidekaphobia"; and on analogy to this the fear of Friday the 13th is called "paraskevidekatriaphobia", from the Greek words "Paraskeví" (Παρασκευή, meaning "Friday"), and "dekatreís" (δεκατρείς, meaning "thirteen"). The superstition surrounding this day may have arisen in the Middle Ages, "originating from the story of Jesus' last supper and crucifixion" in which there were 13 individuals present in the Upper Room on the 13th of Nisan Maundy Thursday, the night before his
Friday the 13th: The Series title, the series has no story connections to the film series of the same title, as Jason Voorhees does not make an appearance, nor does any character connected to the films. In the United Kingdom it was allegedly listed on TV schedules as "Friday's Curse" though when going to advertisement breaks on ITV it was titled "Friday the 13th: The Series". The series and the films have several cast and crew ties, however. The show's producer, Frank Mancuso, Jr., was producer of the film series from "Friday the 13th Part 2" (1981) until the final installment distributed by Paramount (""