008/07-10 All materials: Date 1/Beginning date of publication

Character position definition and scope:

The Date 1 character positions contain a date specified by the code in 008/06 (Type of date/Publication status). The determination of dates for 008/07-10 is made concurrently with the choice of code for 008/06. See 008/06 code definitions for examples. Also see 008/06 for the legal characters to enter in Date 1. The use of fill characters ( | ) in 008/07-10, although possible, is discouraged since the data in Date 1 is used for retrieval and duplicate detection in many systems. When fill is used in 008/07-10, all four positions must contain the fill character.

Record requirements for position 008/07-10 for all types of material: for National-level records - Mandatory; for Minimal-level records - Optional.

Validity by material type: Valid for all types.

Guidelines for applying content designators:

Valid character:	Description:
0 - 9	Digits
u	Unknown
#	Not applicable

The table below gives a summary of the date entered in 008/07-10 based on the Type of date code entered in 008/06. For a detailed description of the 008/06-14 entries and for examples on entering the 008/07-10 character positions, click on the specific code description in the 008/06 Type of Date and Code column.

008/06 Type of Date and Code:	008/07-10 Date 1 / Beginning date of publication:
No date; B.C. date:
b No dates given; B. C. date involved	Contain # (blanks); use ####.
\| No attempt to code	Contain \| (fill characters); use \|\|\|\|.

Single date:
e Detailed date	Contain the year.
s Single known date/probable date	Contain one known single date of distribution, publication, release, production, execution, writing, or a probable date that can be represented by four digits.

Multiple dates:
i Inclusive dates of collection	Contain the beginning inclusive date applicable to a collection.
k Range of years of bulk of collection	Contain the beginning year in the range of years covered by most of the material in the collection.
m Multiple dates	Usually contain the initial (or beginning) date of the range of years of publication.
p Date of distribution/release/issue and production/recording session when different	Contain the date of distribution/release/issue.
r Reprint/reissue date and original date	Contain the date of reproduction or reissue.
t Publication date and copyright date	Contain the date of publication, release, production, or execution.

Unknown dates:
n Dates unknown	Unknown; use uuuu.
q Questionable date	Exact date is not known but a range of years for the date can be specified. Contains the earliest possible date.

Continuing resource publication status:
c Continuing resource currently published	Contain the beginning date of publication.
d Continuing resource ceased publication (Dead status)	Contain the beginning date of publication.
u Continuing resource status unknown	Contain the beginning date of publication.

Content designator history:

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