|Field Name:||Date (YYYY-MM-DD)|
|Requirement:||Mandatory, if available|
|Repeatable:||No (Although other types of dates can be recorded in separate date elements; see below)|
|Dublin Core (DC) Mapping:||dc.date.created|
|MARC Mapping:||260 $c; 008/07-10; 046 $k|
|CONTENTdm Data Type:||Date|
|Dublin Core Definition:||Date of creation of the resource.|
|UA Definition:||The date of creation of the original resource.|
These instructions only deal with machine-readable dates entered according to W3CDTF profile of ISO 8601. Such dates may be creation dates or dates of the types discussed in the “Other Dates” section below.
Date Created (dc.date.created)
The Date (YYYY-MM-DD) field is mandatory for every resource for which a date is either known or can be estimated. The field may be used alone, or, when it is desirable to display the date in a textual format (e.g., April 12, 1865 or circa 1952) it can be paired with the optional Date element.
If the date is not known or cannot be estimated, leave the field blank. Do not use “Unknown” or “No date.”
When the date is known or can be estimated, enter it in one of these formats, all of which conform to both W3CDTF and CONTENTdm standards:
Do not use format 07/06/1932 or 11/1900.
If the date on the item does not conform to the Gregorian or Julian calendar, convert it and record in Western-style Arabic numerals. Also give the date as found, along with the name of the calendar, in Notes. For example, “Date on item is 2628, which is dated in accordance with the Chinese calendar” (DACS 2.4.5).
In some collections, other types of dates may be important for the lifecycle of the resources involved. If it is deemed important to record dates additional to the creation date, use separate date elements along with clarifying element names for each.
The following are the DC date refinements that may be used. All should be: searchable, visible, and non-repeatable; coded in CONTENTdm with data type “Date”; and entered in the YYYY-MM-DD format given above.
Using the Digital Collection Gateway “Prefix/Suffix” feature
1945-03-07; 1945-03-08; 1945-03-09; 1945-03-10; 1945-03-11
1966-12; 1967-01; 1967-02