The Roman calendar was the calendar used by the Roman Kingdom and Roman Republic. Although the term is primarily used for Rome's pre-Julian calendars, it...

General Roman Calendar is the liturgical calendar that indicates the dates of celebrations of saints and mysteries of the Lord (Jesus Christ) in the Roman Rite...

over the long term. The term calendar is taken from kalendae, the term for the first day of the month in the Roman calendar, related to the verb calare...

Berbers). The Julian calendar was proposed in 46 BC by (and takes its name from) Julius Caesar, as a reform of the earlier Roman calendar, which was largely...

The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas...

A calendar era is the period of time elapsed since one epoch of a calendar and, if it exists, before the next one. For example, it is the year 2024 as...

General Roman Calendar was promulgated on 1 January 1970 by Paul VI's Mysterii Paschalis. It is the current version of the General Roman Calendar. While...

are still the basis of many calendars today and are used to divide the year. Calendars that developed from the Roman calendar system, such as the internationally...

National calendars of the Roman Rite of the Catholic Church are lists of saints' feast days and other liturgical celebrations, organized by calendar date...

Coligny calendar. Nevertheless, the Roman calendar contained very ancient remnants of a pre-Etruscan 10-month solar year. The Roman calendar was reformed...