Pattern wiki:
[he martial arts related meaning of Pattern see Tae Kwon Do and Kata (Karate).A pattern is a form, template, or model (or, more abstractly, a set of rules) which can be used to make or to generate things or parts of a thing, especially if the things that are generated have enough in common for the underlying pattern to be inferred or discerned, in which case the things are said to exhibit the pattern. Pattern matching is the act of checking for the presence of the constituents of a pattern. The detection of underlying patterns is called pattern recognition.
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Halloween wiki:
>For other uses, see Halloween (disambiguation). Halloween is an observance celebrated on the night of October 31, most notably by children dressing in costumes and going door-to-door collecting candy. It is celebrated in much of the Western world, though most common in the United States, Puerto Rico, Ireland, the United Kingdom, Canada and sometimes in Australia and New Zealand. Irish, Scots and other immigrants brought older versions of the tradition to North America in the 19th century. Most other Western countries have embraced Halloween as a part of American pop culture in the late 20th century.
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