<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

Base Attributes

Models and Context
May be contained in
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>
...