bn:00031261n
Noun Concept
Categories: Units of time, Chronology, Articles with short description, Calendaring standards, Calendar eras
EN
epoch  era  period  Éra  calendar epoch
EN
A period marked by distinctive character or reckoned from a fixed point or event WordNet 3.0
date
popular music
timekeeping
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EN
A period marked by distinctive character or reckoned from a fixed point or event WordNet 3.0 & Open English WordNet
In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. Wikipedia
An era is a span of time defined for the purposes of chronology or historiography, as in the regnal eras in the history of a given monarchy, a calendar era used for a given calendar, or the geological eras defined for the history of Earth. Wikipedia
A moment in time chosen as the origin of a particular era Wikipedia Disambiguation
Span of time marked by people, events, geological periods, etc. Wikidata
A period of time in history seen as a single coherent entity. OmegaWiki