The purpose of this list is to indicate what is not certain about the date on which a particular event occurred.

This list has been developed by HURIDOCS.

This is a short list with one level, as described in Rule No. 1 in the Introduction.

This Micro-thesaurus is used for:

field 113 Initial Date and field 114 Final Date in the Event format

field 911 Date of Birth and field 928 Date Deceased in the Person format

field 2111 Initial Date and field 2121 Final Date in the Act format

field 2310 Initial Date and field 2311 Final Date in the Biographic Details format.

CODE
 TERM
 
01
 Estimate
02 Unknown day
03 Unknown month and day