Calendar (stationery)

A calendar is used to display dates and related information, usually in a table format. Calendars are used to plan future events and keep track of appointments, and so a typical calendar will include days of the week, week numbering, months, public holidays and clock changes.^[1] Printed calendars also often contain additional information relevant for specific groups – for instance, a Christian liturgical calendar will show holy days and liturgical colours,^[2] while a calendar for amateur astronomers will highlight phases of the moon, conjunctions and eclipses. Alongside their practical uses, calendars have taken on a decorative purpose, offering an easy way to introduce regularly changing artwork to a space, and have even influenced art and sexuality by popularizing the pin-up style.