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PERIOD OF USE FROM - Humanities

Field label
PERIOD OF USE FROM
Field mnemonic
PERF
Field name
  • Period of Use From
  • Début de l'époque d'utilisation
Field definition
This field contains the earliest possible date of use of the object.
Heading
DATING FIELDS
Comments
NOTE: This field has NOT been updated as part of the May 2010 Data Dictionary update. Priority for the Data Dictionary update was given to those fields that are required or strongly recommended for Artefacts Canada contribution. The Entry Rules for this field will be updated at a later date.
Entry rules
Enter a numeric date. Always record the date in YYYYMMDD order (always give all four digits of the year). Dates can be qualified by adding one of the following attributes: circa (C), prior to (P), later than (L), decade ('s), between (-) and uncertain (?). Dates can also be described as "unknown". BC dates should be expressed as negative integers.
Cataloguers rules
See also, Period of Use To (PERT).
Data type
alpha-numeric string
Examples
  • 19561101
  • 19561101 ?
  • 19560000 ?
  • 19561101 P
  • 20000101 C
  • unknown
  • 19561101
  • 19561101 AN
  • 19560000 ?
  • 19561101 PO
  • 20000101 C
  • inconnu
Discipline
  • Multidiscipline
Source
  • User's Conference 1990
Field label (French)
DEBUT DE L'EPOQUE D'UTILISATION
Field mnemonic (French)
DEU

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