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388 Time Period of Creation (R)

Record Type
BIB
Input Standards
Field (Full/Minimal)
Required if applicable/Optional
1st Indicator Type of time period
	No information provided
1	Creation of work
2	Creation of aggregate work
2nd Indicator Undefined
	Undefined
Subfields (R=Repeatable NR=Nonrepeatable)		Input Standards (Full/Minimal)
ǂa	Time period of creation term (R)	Required if applicable/Required if applicable
ǂ0	Authority record control number (R)	Optional/Optional
ǂ1	Real World Object URI (R)	Optional/Optional
ǂ2	Source of term (NR)	Required if applicable/Required if applicable
ǂ3	Materials specified (NR)	Optional/Optional
ǂ6	Linkage (NR)	System supplied/System supplied
ǂ7	Data provenance (R)	Optional/Optional
ǂ8	Field link and sequence number (R)	Optional/Optional

Definition

The time period of creation or origin of the work or expression (including aggregate works), or of the works or expressions contained in an aggregation.

For information on punctuation, see the Punctuation section below.

1st Indicator

Type of time period.

No information provided

1

Creation of work. The time period of creation or origin of the work/expression, or of the components of an aggregate work/expression.

046			ǂk 07uu/1100 ǂ2 edtf
245	0	0	Beowulf
388	1		Eighth century ǂa Eleventh century ǂ2 lcsh
[A work originally written between the 8th and 11th centuries A.D.]

046			ǂo -07uu/-05uu ǂp 06uu ǂ2 edtf
245	0	0	Broken laughter : ǂb select fragments of Greek comedy
388	1		Middle Ages ǂ2 lcsh
[An aggregation of ancient Greek fragments, the dates of which could range from the 8th-6th centuries B.C. to the 7th century A.D.]

2

Creation of aggregate work. The time period of creation or origin of an aggregate work/expression.

046			ǂk 1985 ǂl 9999 ǂo 1801 ǂp 1899
245	0	0	Nineteenth century English drama
388	1		Nineteenth century ǂ2 lcsh
388	2		Twentieth century ǂa Twenty-first century ǂ2 lcsh
[A set of English drama originally created from 1800-1899 and aggregated in a microform set beginning in 1985]

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank.

	Undefined

Subfields

ǂa Time period of a creation term

A term that indicates the time period of creation or origin of the work/expression (including aggregate works), or of the works or expressions contained in an aggregation.

046			ǂk 1980 ǂo 1781 ǂp 1791
100	1		Mozart, Wolfgang Amadeus, ǂd 1756-1791
245	1	4	Die grossen Opern
388	1		1781-1791 ǂ2 fast
388	1		Eighteenth century ǂ2 fast
388	2		1980 ǂ2 fast
[An aggregate work released in 1980, containing the individual works that were created from 1781-1791]

ǂ0 Authority record control number

For information about subfield ǂ0, see Control Subfields.

ǂ1 Real World Object URI

For information about subfield ǂ1, see Control Subfields.

ǂ2 Source of term

For subfield ǂ2 codes, see Temporal Term Source Codes.

For information about subfield ǂ2, see Control Subfields.

ǂ3 Number of performers of the same medium

For information about subfield ǂ3, see Control Subfields.

ǂ6 Linkage

Data that link fields when non-Latin script is entered. This subfield is system supplied and does not appear in OCLC online displays. Do not manually add subfield ǂ6. For more information about subfield ǂ6, see Control Subfields.

ǂ7 Data provenance

For information about subfield ǂ7, see the Data Provenance Subfields section of Control Subfields.

ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.

Punctuation

For records containing or omitting punctuation, follow these instructions:

Include incidental punctuation needed within any subfields, e.g., commas, periods (following abbreviations or initials), etc.
Omit punctuation preceding each subfield unless the preceding subfield ends with an ellipsis, exclamation point, hyphen, period (following an abbreviation or initial), question mark, closing bracket, or closing parenthesis
Omit the terminal period at the end of the field unless the last word is an abbreviation or initial

388

1

Eighth century ǂa Eleventh century ǂ2 lcsh

For more information on punctuation, including OCLC policy, see section 2.8, Punctuation.

Indexing

For indexing and searching information, see Searching WorldCat Indexes, field 388.

MARC 21

For more information, including content designator history, see MARC 21 Format for Bibliographic Data, field 388.

This page last revised: January 10, 2023

3xx Fields