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<era> Era of Time

A specified range of years that is named for an event, political ruler, or characterization of the timespan.

Usage/Remarks

Eras are used in modern date representations of dates in, for example, Japan, Korea, China, and Vietnam. As an example, “2013” is in the Japanese era “昭和” (Heisei 25).
Attributes
content-type
specific-use

Multi-lang Attributes

lang-focus
lang-focus-custom
lang-group
lang-source
lang-source-custom
lang-translate
lang-variant
lang-variant-custom

Base Attributes

id
xml:base
xml:lang
Models and Context
May be contained in
<date>, <date-in-citation>, <pub-date>, <string-date>
Description
Text, numbers, or special characters
Content Model
<!ELEMENT  era         (#PCDATA)                                     >
Tagged Sample

Japanese date

...
<date date-type="received" calendar="Japanese" 
  iso-8601-date="2013-07-01">
 <day>1</day>
 <month>7</month>
 <year>25</year>
 <era>平成</era>
</date>
...