678 Biographical or Historical Data

Field definition and scope:

Field 678 contains biographical, historical, or other information about the 1XX heading in an established heading record, an established heading and subdivision record, or a subdivision record. The note is usually written in a form adequate for public display.

Field 678 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National level (NLR) record requirements, and designator repeatability, see table below:

Position	Description	NLR	Repeatability
Field 678	Biographical or Historical Data	O	R
Indicator:
First	Type of data	M
#	No information provided	A
0	Biographical sketch	A
1	Administrative history	A

Second	Undefined; contains a blank	M

Subfield code:
$a	Biographical or historical data	M	R
$b	Expansion	O	NR
$u	Uniform Resource Identifier	O	R
$6	Linkage	A	NR
$8	Field link and sequence number	O	R

Input conventions:

Content designator history:

678 - Epitome [renamed]

First Indicator - Type of data [defined]

Subfield $a - Epitome [renamed]

Subfield $b - Expansion [defined]

In 1997, this field was renamed as Biographical or Historical Data.

Subfield $u - Uniform Resource Identifier [defined]: In 2000, subfield $u was defined to contain the Uniform Resource Identifier (URI).

LC Guidelines:

DCM Z1 Instructions: