b - No dates given; B.C. date involved  [new, 1987]:  Prior to the definition of this code and field 046 (Special Coded Dates) in 1987, data elements for coded information about B.C. dates were not provided in MARC.

c - Actual date and copyright date  (BK CF MP MU VM)  [obsolete]

c - Serial item currently published  [redefined, 1995]

t  - Publication date and copyright date  [new, 1995]

Prior to its redefinition in 1995, code c had a different definition for books, computer files, maps, music, and visual materials than it did for serials.  The difference was eliminated by the definition of a new code t (Publication date and copyright date) which is used in place of the obsolete nonserial code c.  The definition of the serial code c was retained.

d - Detailed date  (BK VM)  [obsolete]

d - Serial item  ceased publication  [redefined, 1995]

e - Detailed date  [new, 1995]

Prior to its redefinition in 1995, code d had a different definition for books and visual materials than it did for serials.  The difference was eliminated by the definition of a new code e (Detailed date) which is used in place of the obsolete nonserial code d.  The definition of the serial code d was retained.

i  - Date of distribution/release/issue and production/recording session when different  (MU)  [obsolete] [redefined, 1983]:  Prior to the definition of code p (Date of distribution/release/issue and production/recording session when different) for music in 1978, this type of date was identified by code i.  The current definition of code i (Inclusive dates of collection) was approved in 1983.

n - Dates unknown:  Prior to the introduction of AACR 2, code n was used with all forms of material when subfield $c (Date of publication, distribution, etc.) in field 260 (Publication, Distribution, Etc. (Imprint)) contained the statement "n.d." for "no date."  In cataloging formulated according to AACR 2, code n is used only:

in records for mixed materials when there is no date in field 260 or in field 245 (Title Statement), and

in visual material records for naturally occurring objects and artifacts when subfield $g (Date of manufacture) is not present in field 260.

Prior to 1995, zeros or blanks were used for unknown portions of Date 1 and Date 2 for some forms of material.

To return, select:

008/06 All materials:  Type of date/Publication status