EAGLE Vocabulary - Dating Criteria

"The common use among Members of the BPN is to insert, when this information is available two dates. A 'Not before' and 'Not after' dates. This is still a best practice and has been preserved as such in any encoding. There are nevertheless divergences on historical periods and indeed in the way computations are done. In many cases only a generic date is possible.

In this vocabulary we suggest a series of standardizations which equate some locution with a specific date interval, e.g. 'shortly after' with an interval of ca. 10 years. The Working Group has chosen to always explicitly suggest the corresponding TEI origDate element as a definition in this vocabulary."