Calendar wiki:
endar is a system for naming periods of time, typically days. These names are known as calendar dates. The dates may be based on the perceived motion of astronomical objects. A calendar is also a physical device (often paper) that illustrates the system (for example, a desktop calendar) â this is the most common usage of the word.
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Black wiki:
>This article is about the color black; for other uses, see Black (disambiguation). Black is a color with several subtle differences in meaning.
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