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Recurring Event (EPT_1)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

Name

recurringEvent

Attribute

EPT Event Temporal Type

Definition

An event that fulfils a pattern of events occurring repeatedly on a regular basis, as a result of natural or human activity, and exhibiting the same essential characteristics at each occurrence.

Description

A recurring event repeats in the sense that each occurrence has the same essential pattern of characteristics. A recurring event differs from a singular event in that the singular event is a unique occurrence, while a recurring event repeats on a periodic or seasonal basis. An example of a natural recurring event is the appearance of Halley's comet in the skies of Earth every 75-76 years. An example of a social recurring event is the annual celebration of the birthday of the British monarch with the ceremony called Trooping the Colour. The regularity of recurring events need not be rigid (that is, occurring at exact intervals). A geophysical, meteorological, or astronomical event may occur on a quasi-periodic basis, such as seasonal floods, monsoons, or meteor showers. A type of recurring event is a repeated commemorative observance of a past singular event. A recurring event differs from a long-term singular event (whose activity continues without periods of inactivity). An event-recurrence is more than a commemoration of an original event, although recurrences may also be treated as commemorations. An event-recurrence is not merely an anniversary date, although a recurrence may occur on an anniversary date of the original event. The date of the original occurrence may be unknown.

Accepted

2016-06-08

Defined by

NFDD 6.1

Allowed for

ZI115 Event