Red Stamp 2017 Printable Calendar

A calendar is a method of organizing days for social, spiritual, professional or administrative needs. This is carried out by providing names to intervals of time, typically times, weeks, months, and a long time. A date is the designation of a single, certain working day inside of such a system. A calendar is also a physical record (often paper) of these kinds of a technique. A calendar can also indicate a checklist of planned activities, such as a court calendar or a partly or fully chronological list of paperwork, such as a calendar of wills.

Intervals in a calendar (this kind of as years and months) are usually, although not necessarily, synchronized with the cycle of the sun or the moon. The most typical sort of pre-modern calendar was the lunisolar calendar, a lunar calendar that occasionally provides a single intercalary month to continue to be synchronised with the photo voltaic year in excess of the long time period.

The calendar in most popular use these days is the Gregorian calendar, introduced in the 16th century by Pope Gregory XIII as a modification of the Julian calendar, which was itself a modification of the historical Roman calendar. The phrase calendar alone is taken from calendae, the term for the very first working day of the thirty day period in the Roman calendar, relevant to the verb calare "to phone out", referring to the "calling" of the new moon when it was very first observed. Latin calendarium intended "account book, sign up" (as accounts have been settled and money owed were gathered on the calends of every single thirty day period). The Latin expression was adopted in Previous French as calendier and from there in Middle English as calender by the 13th century (the spelling calendar is early contemporary).

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