Mischief Night is an informal holiday on which children, teenagers and adults engage in jokes, pranks, vandalism, or parties. It is known by a variety of names including Devil's Night, Gate Night, Goosey Night, Moving Night, Cabbage Night, Mystery Night and Mat Night. Historical background The earliest reference to Mischief Night is from 1790 when a headmaster encouraged a school play which ended in "an Ode to Fun which praises children's tricks on Mischief Night in most approving terms". In some regions in England, these pranks were originally carried out as part of the May Day celebrations, but shifted to later in the year, dates varying in different areas, some marking it traditionally on 4th November, the night before bonfire night or the 30th October the night before Halloween though the latter is marked traditionally nowadays. According to one historian, "May Day and the Green Man had little resonance for children in grimy cities. They looked at the opposite end of the year and found the ideal time, the night before the Gunpowder Plot." However, the shift only happened in the late 19th century and is described by the Opies as "one of the mysteries of the folklore calendar". Naming variations In the United States and Canada In most of New Jersey, and other regions of the United States, including New Orleans, Philadelphia, the Lehigh Valley region of eastern Pennsylvania, Delaware, parts of New York state, and Connecticut, it is referred to as "Mischief Night" or, particularly in the Great Lakes region, "Devil's Night". In some towns in North Jersey and parts of New York State, it is also known as "Goosey Night" and "Cabbage Night". In Baltimore, Maryland, it has traditionally been referred to as "Moving Night" due to the custom of exchanging or stealing porch furniture and other outside items. In Detroit, which was particularly affected by Devil's Night arson and vandalism throughout the 1980s, many citizens take it upon themselves to patrol the streets to deter arsonists and those who may break the law. This is known as "Angels' Night". Some 40,000 volunteer citizens patrol the city on Angels' Night, which usually runs October 29 through October 31, around the time most Halloween festivities are taking place. In rural Niagara Falls, Ontario, during the 1950s and 1960s, Cabbage Night () referred to the custom of raiding local gardens for leftover rotting cabbages and hurling them about to