bn:03196371n
Noun Concept
Categories: long volume value, Chronology, Calendar eras
EN
calendar era  Era dating  year-numbering system  year numbering
EN
A calendar era is the period of time elapsed since one epoch of a calendar and, if it exists, before the next one. Wikipedia
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EN
A calendar era is the period of time elapsed since one epoch of a calendar and, if it exists, before the next one. Wikipedia
A system of year numbers Wikipedia Disambiguation
Period of time elapsed since one epoch of a calendar and, if it exists, before the next one Wikidata
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