MARC 046 Special Coded Dates (Authority)
MARC field 046 in the authority format contains information about dates that are associated with the entity described in the record.
ǂf - Birth date ǂg - Death date ǂk - Beginning or single date created ǂl - Ending date created ǂs - Start period ǂt - End period ǂu - Uniform Resource Identifier ǂv - Source of information ǂ2 - Source of date scheme
Policy and formulation
- Include readily-available date information in this field, even if that information is not used in the authorized access point.
- Firm (even if vague) dates do not need a ǂ2; it is assumed that the source is ISO 8601 (the international standard for dates and times).
- Uncertain dates are formulated according to the Extended Date/Time Format developed by the Library of Congress, and require
046 ǂs 1705 ǂt 1721 1001 Speed, Anne, ǂd active 18th century