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. The name given to each day is known as a date. 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.
A brochure (also referred to as a pamphlet) is a type of leaflet. Brochures are most commonly found at places that tourists frequently visit, such as museums, major shops, and tourist information. Brochure racks or stands may suggest visits to amusement parks and other points of interest. Another type of brochure is interpersonal brochures, which are brochures based on other people. Then there are pamphlets that you can find in health clinics and hospitals, that give help and advice to do with your health. The two most common brochure styles are single sheet, and booklet (folded leaflets) forms.