Author(s):
Mohn, Jürgen
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Lichtenberger, Hermann
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Meßner, Reinhard
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Gerö, Stephen
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Nagel, Tilman
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Et al.
[German Version] I. General – II. Jewish Calendar – III. Christian Calendar – IV. Islamic Calendar – V. Liturgical Calendar
I. General
1. The term calendar derives from the Roman “calendae,” the day on which a new month was proclaimed. It designates the structuring and hence the consequent mediation of time, i.e. records in pictorial and literary media to communicate structures of time. Calendars are concrete translations of chronologies. The performance of activities to be collectively coordinated must be regulated in the various arenas of human life: for example, in everyday life (planting, harvest, hunting, market), in public life (tax years, court days, assembly dates, games, memorials), and in religion (rituals, festivals, new years). The calendrical division of time is, therefore, a fundamental phenomenon of self-organization in all cultures. The complexity of a calendar or of the simultaneous use of different calendars depends on the degree of social differentiation and the respective specific need for coordination. The constructive order of calendrical time relates primarily to the definition and internal arrangement of the fundamental unit, the year, and secondarily to the sequence and arrangement of the divisions of the year into months, weeks, and days. Each day is unequivocally identifiable and through the rhythm of return is accentuated in terms of its importance and cultural-religious quality. Thus, the calendar concretely mediates between the uniqueness of the year and the internal order of the year, and thereby the concrete feast days. The linearity of the course of time is interrupted, on the one hand, by the dimension of the regularly returning memorial. On the …