Used as a container for dates related to the processing history of the document, such as received date and accepted date
Authoring and Conversion Note: The dates inside the <history> element are used to preserve events other than publication dates in the lifecycle of the article. Publication dates are considered to be an important part of the article metadata. History dates include accepted date, received date, reviewed date, and other dates that may be important to the publisher, but are not a likely part of the article metadata for searching, building a DOI, etc.
... <article-meta> <article-id pub-id-type="pmid">...</article-id> <title-group>... </title-group> <contrib-group>... </contrib-group> <aff id="StLukes">...</aff> <pub-date pub-type="pub"> <day>27</day><month>3</month> <year>1999</year> </pub-date> <volume>318</volume> <issue>7187</issue> <fpage>837</fpage> <lpage>841</lpage> <history> <date date-type="accepted"> <day>29</day> <month>1</month> <year>1999</year></date> </history> <copyright-statement>Copyright © 1999, British Medical Journal</copyright-statement> <copyright-year>1999</copyright-year> <abstract> <p>To examine the effectiveness of day hospital attendance in prolonging independent living for elderly people.</p> </abstract> </article-meta>...