One of the publication history dates that may be preserved for a book or book component, such as when it was last updated. This element acts (as does the related element <pub-date>) as a wrapper element for date elements, such as <day>, <month>, and <year>, which are usually given numeric values, as well as for <string-date> and <season>, which are just text strings.
Conversion Note: It is best practice to tag individual date elements (such as <year>) whenever possible. Use <string-date> for the narrative form of a date when necessary, for example, when a date has no month or year specified. However, even inside a <string-date> the named date components, such as <year>, can even be specified.
The NCBI Book DTD and NCBI Collection DTDs allow <string-date> both inside <date> and at the same level as <date>. This is the most flexible for allowing the archive to preserve any publisher’s structure.
<!ELEMENT date %date-model; >
The following, in order:
... <book-part-meta> <title-group> <title>GenBank: The Nucleotide Sequence Database</title> </title-group> <contrib-group>...</contrib-group> <history> <date date-type="created"> <day>09</day><month>10</month><year>2002</year> </date> <date date-type="updated"> <day>27</day><month>07</month><year>2004</year> </date> </history> <alternate-form xmlns:xlink="http://www.w3.org/1999/xlink" alternate-form-type="pdf" xlink:href="ch1d1"/> <abstract> <p>The GenBank sequence database is an annotated collection of all publicly available nucleotide sequences and their protein translations. This database is produced ...</p> </abstract> </book-part-meta> ...