Library of Congress >> MARC >> Authority >> 01X-09X    >> 046

046 - Special Coded Dates (R)


MARC 21 Authority - full
April 2013

First Indicator Second Indicator
Undefined
# - Undefined

Undefined
# - Undefined


Subfield Codes
  • $f - Birth date (NR)
  • $g - Death date (NR)
  • $k - Beginning or single date created (NR)
  • $l - Ending date created (NR)
  • $o - Single or starting date for aggregated content (NR)
  • $p - Ending date for aggregated content (NR)
  • $s - Start period (NR)
  • $t - End period (NR)
  • $u - Uniform Resource Identifier (R)
  • $v - Source of information (R)
  • $2 - Source of date scheme (NR)
  • $6 - Linkage (NR)
  • $8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Dates that are associated with the entity described in the record. These include:

For a person: a person's date of birth, date of death, and the date or date range of the person's period of activity.

For a corporate body: a date or range of dates on which a conference, etc., is held, or a date with which the corporate body is otherwise associated (e.g., date of establishment, date of termination).

For a family: a significant date associated with the family.

For a work or expression: see subfield $k (Beginning or single date created).

The date and time are recorded according to Representations of Dates and Times (ISO 8601) in the pattern yyyy, yyyy-mm, or yyyymmdd (4 for the year, 2 for the month, and 2 for the day) unless subfield $2 (Source of date) specifies another date scheme.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

SUBFIELD CODES

$f - Birth date

The year a person was born. Date of birth may also include the month and day of the person’s birth.

046 ##$f1931
100 1#$aMunro, Alice,$d1931-
046 ##$f19360505
100 1#$aSmith, John,$d1936 May 5-

$g - Death date

The year a person died. Date of death may also include the month and day of the person’s death. The date is recorded as specified in the field definition and scope.

046 ##$f1899$g1961
100 1#$aHemingway, Ernest,$d1899-1961

$k - Beginning or single date created

For a work, earliest date (normally the year) associated with a work; that date may be the date the work was created or first published or released. For an expression, the earliest date (normally the year) associated with an expression; that date may be the date of the earliest known manifestation of that expression. In both cases the date in subfield $k may be the starting date of a range or a single date.

$l - Ending date created

Ending date of the date range for which the beginning date is recorded in $k.

$o - Single or starting date for aggregated content

Single or starting date of original release of the contents of a collection/aggregation.

046 ##$k1985$l9999$o1800$p1899
[A set of English drama originally created 1800-1899 and published as a microform set beginning in 1985]
046 ##$k1994$o0203$p1486
[Writings created 203-1486 and published as an anthology in 1994]

$p - Ending date for aggregated content

Ending date of original release of the contents of a collection/aggregation.

046 ##$k2006$o1932$p1940
[A DVD set of films originally released 1932-1940 and issued as a collection in 2006]

$s - Start period

Start date for a significant period associated with the entity.

The date is recorded as specified in the field definition and scope.

046 ##$s1977
110 2#$aDouble Image (Musical group : 1977-)

$t - End period

End date for a significant period associated with the entity.

The date is recorded as specified in the field definition and scope.

046 ##$s1925$t1979
100 3#$aPahlavi (Dynasty : 1925-1979)

$u - Uniform Resource Identifier

Uniform Resource Identifier (URI), for example a URL or URN, which provides electronic access data in a standard syntax. This data can be used for automated access to an electronic item using one of the Internet protocols.

In field 046, subfield $u is used for the source of information about dates accessible electronically.

$v - Source of information

Source where the information recorded in field 046 was found if not through a URI.

$2 - Source of date scheme

Source of the date scheme used in the field if not in the form yyyymmdd as specified in subfield $f (Birth date). Code from: Date and Time Scheme Source Codes.

046 ##$f1831?$2edtf
100 1#$aSmith, James,$dborn 1831?
[probable year of birth]

$6 - Linkage

See description of this subfield in Appendix A: Control Subfields.

$8 - Field link and sequence number

See description of this subfield in Appendix A: Control Subfields.


CONTENT DESIGNATOR HISTORY

$k - Beginning or single date created [NEW, 2010]
$l - Ending date created [NEW, 2010]
$o - Single or starting date for aggregated content [NEW, 2013]
$p - Ending date for aggregated content [NEW, 2013]

Library of Congress >> MARC >> Authority >> 01X-09X    >> 046
(04/29/2013)
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