Many people are brought up in families and communities with deeply spiritual beliefs. Some people identify with those ideas, whereas others do not. A long time ago people devised these superstitions to explain the world in which they lived. These ideas were based on a multitude of things: oral tradition, regional mythologies, sometimes even tales used to indoctrinate the public (the way some countries have folktales that extoll the vices of old, ugly witchlike characters). The latter was most popular throughout the many phases of Witch trials throughout the world. The fear of Friday the 13th, for instance, arose from the burning of many members of the Knights Templar, on a Friday the 13th.