Calendar

A calendar is a system of organizing days for social, religious, commercial or administrative purposes. This is done by giving names to periods of time, typically days, weeks, months, and years. A date is the designation of a single, specific day within such a system. Periods in a calendar (such as years and months) are usually, though not necessarily, synchronized with the cycle of the sun or the moon. Many civilizations and societies have devised a calendar, usually derived from other calendars on which they model their systems, suited to their particular needs.
==Gallery==
1984 Make Your Own Calendar Coloring Book.jpg|1984 Make Your Own Calendar Coloring Book
File:Math Dates On A Calendar.jpg
File:Fill in The Blanks Writing Dates On A Calendar.jpg
==External links==
* on Wikipedia
Category:Calendars